3. 3BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Company Introduction
Focus——Many years of experiences in telecom industry
Reliable——First ranking supplier for several operators
• Established in Beijing in 2009.
• 20 domestic and 3 oversea sales offices.
• 1 Lithium battery production base in Zhuhai with 96M AH/Year capacity.
• 1 Cabinet-type Air conditioner production base in Shenzhen in 2015.
Beijing Linkdata Technologies CO., LTD.
Creative——Continues renovation based on customer requirement
4. 4BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Business Development
2009
• First bring LiFePO4 to Chinese
operator
• UPS with LiFepo4 for routers
2010
• LiFePO4 for 3G base station
2011
• Renovated DPS for Data Center
2012
• No.2 for China Telecom
• No.4 for China Unicom
2013
• No.1 for China Mobile
• Start oversea market
2014
• Total solution for 4G
based station
2015
• 60 M USD sales
• More than 40% of market
share in telecom domain
• Cover 37 countries
5. 5BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Telecom Market Share in Domestic
• China Mobile: 70,000 units in two sections. No.1 and
No.2 in two sections, in total 41% share, 29400 units.
• China Telecom: 50,000 units. No.1, 31% of share,
15,500 units.
• Exclusive supply in Beijing Unicom, Tianjing and
Guangxi Tower company. No2 in Guangdong Tower
company. Total supplied around 15,000 units.
10. 10BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Products
Power SystemLiFePO4 Battery Cabinet and Cooling
solution
• 12V,24V, 48V, 96V battery
pack
• 250V high voltage battery
pack
• DC power supply (SMPS)
• UPS
• DPS (Distributed Power
System)
• Outdoor cabinet & air
conditioner
• Power system monitoring
platform
11. 11BEIJING LINKDATA TECHNOLOGIES CO., LTD.
• High power density—Smaller size and weight
• Long cycle life—Suitable for frequently usage
• Better temperature tolerance—Outdoor sites
• Green—Less polution and better efficiency
Comparison
Advantage of LiFePO4
LiFePO4
LiFePO4
Gel
EfficiencyCycle life
120Wh/kg
60Wh/kg 800
2000
Type of Battery
VRLA 40Wh/kg 500
Temperature
-30℃~50℃
-20℃~60℃
15℃~35℃
Power density
≥95%
50~75%
60~80%
Green
No
Yes
No
• Rack mount unit & customized unit
• Support multiple in parrallel and hot swapable
• Multi-function configurable BMS
• Remote monitoring platform
Advantage of LD battery
12. 12BEIJING LINKDATA TECHNOLOGIES CO., LTD.
BMS
• Single cell voltage
• Battery pack voltage & current
• Battery capacity & DOD
• Over charege alam & protection for cell & pack
• Over cuurent alam & protection for cell & pack
• Temperature alam & protection for cell & pack
• Short circuit protection
• Smart cell balance
• Communicaiton port
• Support LCD, internal memory,current limiting,
second level BMS and etc.
BMS Function
14. 14BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Power System
• AC input ：85V~300V@50Hz
• DC ouput：-48V
• Capacity：10A~60A rectifier module, max. 400A
DC Power (SMPS)
UPS
DPS
• AC input：176V~264V@50Hz
• AC utput：215V~225V@50Hz
• Capacity：500VA~400KVA
• AC input：176V~264V@50Hz
• AC output：215V~225V@50Hz
• Capacity：4.5KVA/6KVA/8KVA
• Battery：240V 5Ah/10Ah/20Ah
16. 16BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Solutions
Base Station
Data Center
5
1
3
2
6
4
1
2
3
4
7
8
DC Power System (SMPS)
UPS
LiFePO4 battery
replace
VRLA
Outdoor cabinet
6
7
DPS
replace
Central large capacity UPS
VRLA8
5
17. 17BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Efficiency
Features
Reliable
• High power density
• High temerature tolenace
• High energy conversion efficiency
• Less space and load-bearing
• Long cycle life
• Large usage of LiFePO4 in IDC
Intelligent
• Central cloud based monitoring system
• Battery healthy analysis
Usability
• Easy to use
• Maintenance free
25. 25BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Experience
Why Choose Us
Industry Integration
• 8 years experice using LiFEPO4
• More than 100K equipments on the
network, cover all telecom application
• North to Finland, south to Philippines,
cover different working environment
• Material cooperation
Customization
• Battery design
• Power system design
• System design
26. 26BEIJING LINKDATA TECHNOLOGIES CO., LTD.
Past Experience
• Over discharge after long time storage (BMS sleep mode)
• Float charging voltage not match with DC power supply (15/16 in series, configuration for various DC power supply)
• Multiple batteries in parallel, over current protection due to DC power supply peak (Current limiting unit)
• No monitoring on remote site (DTU and monitoring platform)
• Single cell over charge cause capacity reduction (Balancing with single cell charge)
• Cell shape change due to installation method (Internal structure enhancement)
• Hot swap when multiple batteries in parallel (Distribution panel and Anderson plug)
• Wrongly connect positive and negative pole (Protection function in BMS)
• Water proof for battery
