• Jump Start Power - 3
  • Jump Start Power - 3
  • Jump Start Power - 3
  • Jump Start Power - 3
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This specification describes the external dimensions, characteristics, technical requirements and matters needing attention of telecom lithium ion battery. This specification is applicable to BTESF48V series lithium iron phosphate battery produced by BAK.

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Note for battery Usage

1.1 Prohibition

For avoiding battery leakage, heat radiating, explosion, below prevent tips should be taken care of:

  • Prohibition of disassembly or re-assembly;
  • Prohibition of short circuited battery;
  • Prohibition to use near hot source;
  • Prohibition of dumping of battery into water ,ocean or getting battery wet;
  • Prohibition of charging near fire or under sunlight;
  • Charge with specified charge according to charging requirement;
  • Prohibition of inserting nail into battery, hammering or stepping on foot;
  • Prohibition of throwing;
  • Prohibition to use with damaged or deformed battery

1.2 Attentions

  • Prohibit of using battery in sunlight, otherwise will cause over hot, firing, or function failure , life reducing;
  • Prohibit use near static place which over 64V;
  • Prohibit charge at temperature below 0℃ or above 60℃;
  • When use at first time, if has corrosion, or bad smell, or any other abnormal, please do not use.
No. Item Model Remark
BTESF48V100-R(E) BTESF48V100-R  
1 Lithium Chemistry LFP  
2 Battery cell Voltage 3.2V  
3 Rated Capacity 100AH 25℃±5℃,0.33C Constant current discharging
4 Min Capacity 98% of rated capacity
5 Rated Voltage 48V 51.2V Battery module rate voltage
6 Energy 2400Wh 2560Wh 0.33C Discharge Rate
7 Standard Charge Current 20A  
8 Max. Charge Current 100A 0℃~50℃,less than 100A
9 Charge Cut Off Voltage 54.75V 58.4V  
10 Float charge Voltage 53.2V 56.7V  
11 Max Continuous discharge Current 100A 25℃±3℃,continuous 100A discharge
12 Discharge Cut Off Voltage 37.5V 40V Discharge to an end voltage not lower than 2.50 volts per cell
13 Specific energy 89.8Wh/kg 91.4Wh/kg  
14 Recombination efficiency ≥97%  
15 Internal resistance  ≤ 25 mΩ ≤ 25 mΩ  
  Self-discharge rate 3%per month  25℃
16 Working 0℃~55℃ Charge 
17 Temperature -20℃~55℃ Charge 
18 Storage Temperature -20 ~ 55℃ Discharge
19 Humidity <95% RH The details refer to item 6
20 Weight 42.2kg 44.5kg Non-condensing
21 Dimensional 442*540*130.5mm