Battery Backup Workshop Provides Insights

© 2013 Utilities Telecom Council
May
5-‐8,
2015

|

Atlanta,
GA

|

www.utctelecom.org
BATTERY
BACKUP
WORKSHOP
MAY
5,
2015
NO POWER=NO SERVICE
DAKX TURCOTTE
MULTITEL INC.

DISCLAIMER
From concept to more practical & technical content.
2

3
➡ DISCLAIMER
➡ INTRODUCTION
➡ WHAT IS A BATTERY?
➡ WHAT ARE YOUR CHANCES OF RUNNING ON BATTERIES?
➡ WHY DO BATTERIES FAIL?
➡ WHY DO YOU NEED IT?
➡ BATTERY BACKUP: FIELD OPERATIONS
➡ PREVENTIVE MAINTENANCE
➡ OUTAGE INTERVENTION
➡ BATTERY BACKUP: ENGINEERING PERSPECTIVE
➡ PLANNING NEW PROJECTS
➡ REPLACING OLD OR EXISTING PROJECTS
➡ CONCLUSION
➡ SHAMELESS PLUG & FREEBIE

WHAT’S A BATTERY?
a container consisting of one or more cells,
in which chemical energy is converted into
electricity and used as a source of power.
bat·ter·y
/ˈbatərē/
noun
4

WHAT’S A BATTERY?
Electrolytes allow ions to move between the electrodes, which
allows current to ﬂow out of the battery to perform work.
5

WHAT’S A BATTERY?
Lower speciﬁc energy than common fuels.
Only energy type that delivers their energy as electricity.
Meaning they are efﬁciently converted to mechanical work.
8

WHAT’S A BATTERY?
Wet cell (VLA) jar VRLA jar Battery string/bank
9

10
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

11
CHANCES ARE…
The stats from our commercial telecom
customers are, on average:
• Number of outages: 4 outages per site per year
• Length of each outage: 1.5 hours
• Direct cost of losing a telecom site: $250,0001
• Indirect cost of losing a telecom site: $150,0001
• Direct cost of losing a substation’s protection: TBD2
• Indirect cost of losing a substation’s protection: TBD2
Note:
1: Direct and indirect costs attributed to a battery-related outage when a site was lost in Miami, FL by a major US telecom operator
2: “We don’t even want to image it” is more likely the answer…

MOREOVER…
3 things we know with absolute certainty about batteries:
(1) limited CAPACITY
(2) ﬁnite and unpredictable LIFETIME
(3) always fail EXACTLY when you need them
12

What are your chances of running on batteries?
I would say: PRETTY HIGH.
13

14
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

TOP 10 #BATTERY_FAILS
10 - Prolonged period without being used
9 - Battery post corrosion, causing (dis)charge problems
8 - Excessive deep discharges
7 - Bad manufacturing process or material
6-Torquing: too much > break terminal seal, too little > short
15

TOP 10 #BATTERY_FAILS
5 -AC ripple (on UPS batteries)
4 - Lack of electrolyte (wet cell batteries)
3 - ↑25°C > corrosion > self discharge > thermal runaway
2 - Over-charging = creates heat = loss of water = sulfation
1 - Under-charging = electrolyte stratiﬁcation
16

17
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

WHY DO YOU NEED IT?
Because there can be up to 15 pieces of equipment making
for the “POWER-TRAIN”within a telecom site.
Because OUTAGES & EQUIPMENT MALFUNCTIONS happen.
Because it impacts you and your CUSTOMERS.
And because it’s EXPENSIVE.
20

29
WHY DO YOU NEED IT?
A few stats on availability or poor backup management:
• 99.9% (Three Nines) availability = 9 hrs/year of downtime.1
• 99.9999% (Six Nines) availability = 30 seconds/year of downtime.2
• 1 hour of downtime equates to $2.0M/hour in the telecom industry.3
• It’s terrible for your customers: $1.4 million/hour to ﬁnancial institutions.3
• $80B: the amount of yearly losses due to power disturbances in the US.
66% of that caused by momentary disturbances, 34% caused by sustained
interruptions of more than 5 minutes.4
References:
1: GilderGroup
2: The dawn of on-site power: http://ecmweb.com/cee-news-archive/dawn-site-power
3: Overhead: The cost of downtime: http://itknowledgeexchange.techtarget.com/overheard/overhead-the-cost-of-downtime/
4: Berkeley Lab Study Estimates $80 Billion Annual Cost of Power Interruptions: http://www.lbl.gov/Science-Articles/Archive/EETD-power-interruptions.html

It’s clear, YOU NEED BATTERIES.
30

31
The questions you need to ask:
• How much time do you need?
• How much time do you really have?
• In what state of health is your backup?
• Can you consistently meet your average failure?
• What happens if your backup doesn’t work?

So, let’s see what the role of Field Operations
is when it comes to battery backup.
32

33
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

Field Maintenance and Operations teams are typically
responsible for two aspects of battery backup:
MAINTENANCE ROUTINES & OUTAGE INTERVENTION.
34

35
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

MAINTENANCE ROUTINES
The two reasons why you do battery preventative
maintenance routines are:
BATTERIES WILL FAIL & NERC COMPLIANCY.
36

NERC COMPLIANCY
What is NERC COMPLIANCY?
37

NERC COMPLIANCY
NERC has multiple RELIABILITY STANDARDS.
One of them is PRC-005-2, which will be enforced starting April
1, 2015, but should have been used starting February 24, 2014.
It covers the MAINTENANCE of all Protection Systems affecting
the reliability of the Bulk Electric System (BES) so that these
Protection Systems are kept in working order.
38

NERC COMPLIANCY
Basically, it tells you what tests & time intervals
to follow for your BATTERY MAINTENANCE.
It is applicable to both protection relays &
TELECOMMUNICATIONS SITES.
39

NERC COMPLIANCY
Maximum
Maintenance Interval
Maintenance Activity VLA (wet cell) VRLA
4 Calendar Months
Verify
• Station DC supply voltage
Inspect
• Electrolyte level
• For unintentional grounds
✓ ✓
6 Calendar Months
Inspect
• Measure battery cell internal ohmic
values for each battery cells
✓
18 Calendar Months
Verify
• Float voltage of battery charger
• Battery continuity
• Battery terminal connection resistance
• Battery intercell or unit-to-unit
connection resistance
Inspect
• Cell condition of all battery cells (visible
cells) or measure battery cell internal
ohmic values (not visible cells)
• Physical condition of battery rack
✓ ✓
18 Calendar Months
or
6 Calendar Years
Verify
• Internal ohmic values or ﬂoat current
per cell compared to baseline
or
Verify
• Full or modiﬁed capacity (discharge,
load) test on the entire battery bank
✓
✓
But every 3 years for
the capacity test
40

NERC COMPLIANCY
If, like most companies, you have VRLAs, you need
to test your batteries EVERY 6 MONTHS using an
ohmic test (conductance, impedance).
And you have to demonstrate COMPLIANCY…
41

What’s a test procedure like?
42

PSMP
Always refer to your
Protection System Maintenance Program
Start Here
43

PSMP
Start Here
Ticket
A technician will typically receive
an automated ticket to perform a
maintenance routine
44

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
45

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
Execute Routine
A technician will typically receive an
automated ticket to perform a
maintenance routine
46

ROUTINE EXECUTION
1
- Use the turkey baster to measure the speciﬁc gravity of each cell. There’s a big drawback: you need protective gear.
Test speciﬁc gravity of each wet cells’ jars
47

ROUTINE EXECUTION
1
2 Visual inspection of each battery jar and battery rack
- Get a ﬂashlight and look for bottom jar’s sediment, warping of place, cracked or broken plates, seeping of acid
around the posts, acid leakage at the bottom of the rack, installation issues, electrolyte level for wet cells…
49

ROUTINE EXECUTION
1
3 Full or modiﬁed capacity test (aka discharge/load)
- Get a load bank & volt meter. As the battery is discharging, you want to take voltage reading of each jar, and at the power
plant level, at speciﬁc time intervals. Your goal is to measure the time it will take to reach your end-voltage threshold.
60

CAPACITY TEST
Capacity test procedure for wet cell (VLA)
batteries is detailed in IEEE Standard 450-2010.
Capacity test procedure for VRLA batteries is
details in IEEE Standard 1188-2005.
61

CAPACITY TEST
PROS CONS
• Deﬁnitive test to measure
your battery reserve time
• Takes time & is relatively expensive
• Need a load bank
• It’s relatively technical and requires a high
level of security & training, dangerous for
people without proper training
• It damages the battery
• Two plates push electrons from one plate to the other.
• The more you do it, the more porous the plates become.
62

ROUTINE EXECUTION
1
4 Manual or automated ohmic test
- Manual using a portable ohmic testing device, or automated using a battery monitoring system.
64

German physicist.
High school teacher.
Began his research with a recent
invention by Italian Count
Alessandro Volta.
Using equipment of his creation, he
determined that there is a:
direct proportionality between the
potential difference applied across a
conductor and the resultant electric
current.
66

Who is
Georg Simon Ohm
(17 March 1789 – 6 July 1854)
67

OHM’S LAW
Ohm's law states that the
current through a conductor
between two points is
directly proportional to the
potential difference across
the two points, and inversely
proportional to the
resistance between them.
68

CONDUCTANCE
Conductance is a measurement of the plate surfaces available for
chemical reaction. High relative conductance is a reliable indication of a
healthy battery. Conductance declines as the battery fails.
By applying an electrical voltage of a known frequency and amplitude
across the jar and measuring the current that flows in response to it.The
conductance (acceptance) is the ratio of the AC test current impressed on
the jar that is in-phase with the AC voltage, compared to the AC voltage
producing it.
DC Resistance: Short duration DC load on the cell/unit to measure step
change in current and voltage. By dividing the change in voltage by the
change in current, a DC resistance is calculated using Ohm's law.
69

IMPEDANCE
Performed by sending an electrical current of a known frequency and
amplitude, across the cell/unit/block and measuring the AC voltage drop.
Compute the resulting impedance using Ohm's law.
70

CONDUCTANCE VS. IMPEDANCE
Conductance - Decreases with battery age
Impedance - Increases with battery age
71

OHMIC TEST
Ohmic test procedure for wet cell (VLA) batteries
is detailed in IEEE Standard 450-2010.
Ohmic test procedure for VRLA batteries is
details in IEEE Standard 1188-2005.
72

BATTERY MONITOR
You can automate ohmic testing using a
battery monitoring system.
Even if the cost is high (~$2,500 per site), the ability
to catch a battery before it fails outpace its cost.
Selection and use of a battery monitoring system is
detailed in IEEE Standard 1491-2005.
74

OHMIC TEST
PROS CONS
• Non-intrusive
• No torquing required as you test the
intercell straps
• Quicker & safer than a capacity test
• Standardized w/ choice of equipment
out there
• Statistically-proven relationship
between ohmic & capacity as tested
by discharge
• Good way to test that a new battery is
good & creating a baseline
• Rapid way of tracking relative health
& identifying jars/batteries that fail
prematurely
• General agreement that it is not
as deﬁnitive as capacity test…
• % of negative-pass
• Some statistical anomalies that can cloud
results
• Make sure you have the right
reference value when analyzing
test results
75

ROUTINE EXECUTION
1
4 Manual or automated ohmic test
- Manual using a portable ohmic testing device, or automated using a battery monitoring system.
76

A 5FT “TEST”…
If you didn’t upgrade your power plant to an intelligent
one, you should EQUALIZE your batteries, by making
sure ﬂoat voltage is at the right value for each jar.
77

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
Execute Routine
maintenance routine
Continue Here
Review
Tech’s live review & analysis of
test data
78

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
Execute Routine
maintenance routine
Continue Here
Review
test data
Close Routine
Complete & close PM ticket
80

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
Execute Routine
maintenance routine
Continue Here
Review
test data
Close Routine
Send to Eng.
Email test results to engineering
for further analysis & replacement
request form ﬁlled-out if need be
81

PSMP
Start Here
Ticket
maintenance routine
Plan Workload
maintenance routine
Execute Routine
maintenance routine
Continue Here
Review
test data
Close Routine
Send to Eng.
Email test results to engineering
for further analysis & replacement
request form ﬁlled-out if need be
Engineering
Takes Over
• Approve/refuse replacement
• Crunch test data and load in
central repository
• Provide metrics for NERC’s
compliancy
82

83
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

OUTAGE INTERVENTION
Field technicians are the ﬁrst people to be called/
dispatched in case of:
MAIN POWER OUTAGE & POWER EQUIPMENT FAILURE.
84

Alarm to NOC
NOC received “Battery On
Discharge” & other alarms
Start Here
85

ALARM
There are typically 2 events that will trigger a BOD alarm:
AC FAIL & CHARGER FAIL.
86

Alarm to NOC
Start Here
Dispatch
NOC will dispatch closest
technician to site
87

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
If not done by NOC, a tech will
validate the cause of outage, length
& ETA to restore
88

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
& ETA to restore
Validate BRT
Based on outage information,
technician will validate the estimated
battery reserve time (BRT) on site
89

AS A RULE OF THUMB
Validated ETA - Validated BRT
= Time to get to a site & react/repair
90

VALIDATE BRT
A validated Battery Reserve Time (BRT) is a key metric
ﬁeld technicians need to react in optimal fashion in
case of outage or equipment failure.
• Get there as soon as necessary
• Bring the right equipment (generator, generator
connector ﬁtting plug and cable, replacement parts)
• Do as few truck rolls as possible
• Keep the site up
91

VALIDATE BRT
There are 4 steps needed to validate BRT:
(1) look for the last available LOAD reading
(2) look for records of exact battery MODEL installed on site
(3) find battery model’s DATASHEET with specific capacity
measurements at specific end-voltage value
(4) use rule of thumb or PEUKERT to estimate BRT
92

German scientist.
In 1897, presented his “law” that
expresses the capacity of a battery
in terms of the rate at which it is
discharged.
As the rate increases, the battery's
available capacity decreases.
94

PEUKERT
Manufacturers rate the capacity of a battery with reference
to a discharge time.A battery might be rated at 100 Ah
when discharged at a rate that will fully discharge the
battery in 20 hours. In this example, the discharge current
would be 5 amperes. If the battery is discharged in a shorter
time, with a higher current, the delivered capacity is less.
96

PEUKERT
What you need to know:
(1) The law is not a law, it’s a recognized concept.
(2) Peukert determines a “k” factor to apply to a battery
technology. For telecom batteries: 1.2.
97

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
& ETA to restore
Validate BRT
Continue Here
Truck Roll
Get all you need and get to the
site
100

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
& ETA to restore
Validate BRT
Continue Here
Truck Roll
site
Repair
Proceed with repair or hook-up
generator
101

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
& ETA to restore
Validate BRT
Continue Here
Truck Roll
site
Repair
generator
Turn On Power
Once repaired, or AC is back on,
switch off generator and go back to
commercial power
102

Alarm to NOC
Start Here
Dispatch
technician to site
Validate ETA
& ETA to restore
Validate BRT
Continue Here
Truck Roll
site
Repair
generator
Turn On Power
Once repaired, or AC is back on,
switch off generator and go back to
commercial power
Wait!!!!!
• Make sure you have enough
charger capacity to manage:
• in-rush current
• recharge batteries
• carry the DC load
• hope the batteries are recharged
before power goes out again…
• … all at the same time
103

You’ve just glanced at what a technicians needs
to know when it comes to battery backup…
And you thought engineers had it hard!?
104

105
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

Engineering teams are typically responsible
for two aspects of battery backup:
PLANNING/SIZING & REPLACING.
106

107
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

PLANNING
When planning new projects in new or existing sites,
engineering needs to RIGHT-SIZE the batteries to be deployed.
Let’s see what that means.
108

Project Issued
Once strategic engineering is
done & funding approved
Start Here
109

Project Issued
Start Here
Estimate Load
Look for the THEORETICAL DC
load of new equipment
110

Project Issued
Start Here
Estimate Load
Challenge That
Theoretical loads will always vary,
typically they are inﬂated. Agree on
a maximum load
111

Project Issued
Start Here
Estimate Load
Challenge That
a maximum load
Pick Site Type
The type of site you pick with have a
huge inﬂuence on the battery
solution you end up with
112

PICK SITE TYPE
Two important aspects to site type:
(1) Available FLOOR SPACE (2) FLOOR LOADING capacity
Large site Small site
Wet cell VRLA
300 lbs/sq.ft 125 lbs/sq.ft
Wet cell VRLA
113

Project Issued
Start Here
Estimate Load
Challenge That
a maximum load
Pick Site Type
Continue Here
Pick Battery
Pick the battery solution &
model you want in your site
114

PICK BATTERY
There are two battery technologies to pick from:
WET CELL (VLA) & VRLA.
115

PICK BATTERY
WET CELL (VLA) VRLA
• Proven since…
>100 years
• Robust
• Reliable
• Recover well
• Long lifetime
Pros Cons
• Acid!!!
• Lead!!
• Takes space
• Heavy
• Requires “maintenance”
• Produces hydrogen gas
during charging
• Needs hydrogen sensor,
proper ventilation &
equipment in battery
room
• Small & portable
• Easier to install
• Can ﬁt anywhere
• Lighter
• Requires no “dangerous”
maintenance
• Shorter lifetime
• Smaller value
over the long run
• Higher risks of
thermal runaway
ConsPros
116

PICK BATTERY
Before picking a battery manufacturer & model, check
with your STANDARDS group or TECHNOLOGY ADVISOR,
they typically have a few selections they want you to use.
117

Project Issued
Start Here
Estimate Load
Challenge That
a maximum load
Pick Site Type
Continue Here
Pick Battery
Find Specs
Use the battery manufacturer
spec sheet to decide which
capacity version you need
118

FIND SPECS
Each battery model has a speciﬁc capacity value for
speciﬁc end-voltage designs. It’s the engineer’s job to
make sure he designs with the right specs.
119

FIND SPECS
Each battery model has a speciﬁc NOMINAL CAPACITY
rating (in Ah) for speciﬁc END-VOLTAGE designs, for a
REQUIRED RESERVE TIME duration.
It’s the engineer’s job to make sure he designs with
the right specs.
120

Project Issued
Start Here
Estimate Load
Challenge That
a maximum load
Pick Site Type
Continue Here
Pick Battery
Find Specs
Size
After picking a model, you now
need to decide on the quantity
needed to support your load
124

SIZE
You’re almost there. You know which model
you want to pick & you know your load. BUT…
125

SIZE
BUT…
You need to provision for growth @ battery end of life.
The reality of telecom facilities is that they change.
New technologies get added, load will vary. You need to
provision for that from day one.
126

SIZE
Total Projected Load ➗ Nominal Capacity Specs of chosen model
= THE NUMBER OF STRINGS NEEDED OF THAT MODEL
127

SIZE - EXAMPLE
Projected Load (A) 100
Battery Model Specs (Ah)
(Enersys SBS170F @ 1.75Vpc @ 8hours)
21.6
Number of Strings Needed 4.6
Note: Some people add an aging factor, like 1.25, to the
number of strings needed. You don’t have to, but you can if you
feel you have the money or your projected load is not relevant.
128

Project Issued
Start Here
Estimate Load
Challenge That
a maximum load
Pick Site Type
Continue Here
Pick Battery
Find Specs
Size
After picking a model, you now
need to decide on the quantity
needed to support your load
Issue Install &
Project Request
• Once the project is sent out:
• make sure you wait until the project
is completed before updating records,
in case of outage
• don’t forget to update records with
new battery model & information
• make sure technicians know the
ohmic reference value for that model
129

130
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

REPLACING
Based on Murphy’s law, if you have bad
batteries, even if you did everything else
right, for sure,THAT ONE SITE WILL FAIL.
Replacing a battery is as important as installing a new one.
131

Get Data
Get test data from ﬁeld
technicians at regular intervals
Start Here
132

Get Data
Start Here
Analyze Data
133

ANALYZE DATA
The data you’ll receive from ﬁeld technicians is the only &
best metric you have to make a decision to maximize
uptime. It’s important, don’t just ﬁle it without looking at it.
134

ANALYZE DATA
Things to look for:
(1) Has the load reading changed since last time?
(2) Was the temperature in the site constant at 25°C?
(3) Is the ﬂoat voltage of the jars and strings at the right value?
> Remotely connect to the controller to make sure. <
(4) Where are the ohmic test results compared to the reference?
135

OHMIC REFERENCE
The ohmic reference value is a hot topic:
(1) Do not trust the reference value the tech was using.
(2) Ideally, have each new string benchmarked at 6 months.
(3) Get the reference from the battery manufacturer.
Don’t use it just yet.
(4) Get reference value from Midtronics or other equipment
vendors. Use this one if it’s slightly lower than the mfg’s.
(5) Repeat for each of your sites.
136

OHMIC REFERENCE
At which reference value should you REPLACE?
Status
Conductance
Reference
Impedance
Reference
Jars are GOOD when > = 80% < = 70%
Jars are WARNING when < 80% and > = 60% > 70% and < = 90%
Jars are BAD when < 60% > 90%
137

Get Data
Start Here
Analyze Data
No Data = Age
For the sites for which you didn’t
get data in the past 24 months, use
age as your replacement trigger
138

NO DATA
What do you do if you do not have data?
(1) Don’t even try hiding it from NERC.
(2) Use age as your replacement trigger.
(3) Send a tech as fast as you can to inspect & measure.
139

Get Data
Start Here
Analyze Data
No Data = Age
Replacement List
Build a replacement list based on all
the data ﬁles you received.
140

REPLACEMENT LIST
What do you do if you do not have data?
(1) Don’t even try hiding it from NERC.
(2) Use age as your replacement trigger.
(3) Send a tech as fast as you can to inspect & measure.
141

Get Data
Start Here
Analyze Data
No Data = Age
Replacement List
Build a replacement list based on all
the data ﬁles you received.
Continue Here
Recalculate BRT
When you received your test results,
you also go a new DC load reading
142

RECALCULATE BRT
Ohmic test results can be
represented a % of your reference.
Can you use that % as a de-rating
factor to reduce battery capacity?
143

RECALCULATE BRT
When you got your test data back from ﬁeld
operations, you also got an updated DC load reading.
If it changed, use the new value to recalculate your
updated Battery Reserve Time (BRT).
147

Get Data
Start Here
Analyze Data
No Data = Age
Replacement List
Build a replacement list based on SOH
& age
Continue Here
Recalculate BRT
Repeat
Don’t forget to repeat this for
each site in your network
148

Get Data
Start Here
Analyze Data
No Data = Age
Replacement List
& age
Continue Here
Recalculate BRT
Repeat
BRT List
For any site lacking BRT, create a
list to add battery capacity
149

BRT LIST
Build a list of all the sites that require added
batteries to support:
(1) De-rated capacity based on ohmic test results
(2) Updated DC load reading
150

Get Data
Start Here
Analyze Data
No Data = Age
Replacement List
& age
Continue Here
Recalculate BRT
Repeat
BRT List
For any site lacking BRT, create a
list to add battery capacity
Cross Reference
Both Lists to
Create Projects
• You end up with two
replacement lists, based on:
• Ohmic state-of-health (SOH) & age
• De-rated capacity & updated load
• Cross-reference to:
• Prioritize replacement needs
• Preventing mistakes such as adding
capacity when you should install new
model
151

So, who has the toughest job?
FIELD TECHNICIANS or ENGINEERS?
152

My point: to maximize battery backup & uptime,
you need both teams to work in full cooperation.
It’s a question of COMMUNICATION & CULTURE.
Promoting this should be a high priority…
Everything else is a process.
153

154
➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

EXTEND LIFETIME
My conclusion today: what can you do to help
extend the lifetime of your batteries?
(4) Top wet cells up in the spring.
(3) Never discharge them… hahaha!
(2) 25°C all the time
(1) Float them at the right voltage
155

➡ DISCLAIMER
➡ INTRODUCTION
➡ CONCLUSION

We’re at > 150 slides. It’s a little overwhelming.

KEEP CALM
AND
HAVE ENOUGH
BACKUP

At Multitel, we’ve developed a tool that’s AUTOMATING
most of the processes & steps you’ve seen here today.
FIRM Battery Management
It’s the ﬁrst enterprise software that gives snapshot &
detailed views of your at risk sites when it comes to batteries.

1
2
4 6
3
5
1. # of routines completed for the network, per
region, per technician
2. # of cells failed or failing based on impedance
3. # of cells failed or failing based on conductance
From the Dashboard, you have access to:
4. List of sites with problems that need escalation
5. List of routines w/ problem or warnings needing approval
6. List of sites for which technicians did an inventory change
requiring approval before being updated in FIRM
160

Through a simple interface, it helps ﬁeld
technicians quickly upload test data.
And crunches it automatically to
generate prioritized replacement lists.
Saving engineers valuable time.

Complete battery replacement program.

And automatically updates Battery Reserve Time (BRT).

No matter who you are in the company, no matter the event, no
matter where you are: always know the updated reserve time
in each site within the network.

FREEBIE
Come see us at booth #308 to learn more about FIRM
Battery Management and we’ll show you the Top 10 Best
& Worst battery models for both Wet Cells & VRLAs.

Data analytics - always know which batteries are best or worst
performing within your network, drill to understand more.
Worst 10 models Worst failures rates Worst production years

May
5-‐8,
2015

|

Atlanta,
GA

|

www.utctelecom.org
Dakx Turcotte
Mobile: +1-418-262-0575
Email: dakx.turcotte@multitel.com
Booth # 903

Battery Backup Workshop Provides Insights

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