SPF48V20Ah E-BIKE Lithium Battery Solution
Surperpack devoted to develop E-BIKE battery SPF48V20AH. The battery built in anti-vibration, flame retardant, high insulating and eco-friendly materials to ensure safety. Superpack used high quality LiFePO4 cells solution and we own its advance packing process with excellent BMS upon cells adequate storage, strict picking and matching cells’ consistency. The battery packs have to be run cycles for ageing inspection to ensure qualification.
1) Long cycle life: 2000 cyclles expectation
2) High safe characteristics
3) Excellent high temperature characteristics
4) To replace Lead-acid battery – High performance and low cost
5) Free Maintenance, Modularity design, compact size and lighter weight
6) 3 times expectation cycle life to Lead-acid battery
7) Self-discharge is less than 3% per month
8) Built in safe protection system
9) Assemble easily
10) Eco-friendly
11) Quality assurance
| Item |
General Parameter |
Remark |
| Battery Model | SPF48V20Ah | |
| Nominal Voltage | 51.2V | |
| Rated Capacity | 20.0Ah | |
| Internal Resistance (mΩ) | ≤100mΩ | 1KHz，AC |
| Size | L*W*H 275*155*115mm(10.83*6.10*4.52") |
Does not include handle |
| Approx. Weight | 8.5 Kg | |
| Battery gauge | LCD | |
| Type | lifepo4 battery cell | |
| Housing material | Iron | |
| Discharge Cutoff Voltage | 2.2V/Cell(≥35.2V) | |
| Charge Cutoff Voltage | 3.65V/Cell（≤58.4V） | |
| Maximum Charge Current | 9A@20℃ | |
| Maximum Continuous Discharge Current | 18A@20℃ |
Recommended:14A |
| Constant current | 0.5C | |
| Cut-off voltage | 40V | |
| Charge temperature | 0～45℃ |
60±25%R.H. 23 ± 5°C recommended |
| Discharge temperature | -20～60℃（cell surface temperature≤80℃） | |
| Storage Temperature Range |
Less than 1 year : 0～25℃(SOC≥50%) Less than 3 months:-5～35℃(SOC≥50%) |
60±25%R.H. at the shipment state |
| Life Expectation | Higher than 80% .of the Initial Capacity of the battery |
1）Charge:CC@0.5C to 73V, then CV till current to 0.05C 2）Rest: 30min. 3）Discharge: 0.5C to 50V Temperature:20±5℃ Carry out 1200cycles |
| Standard charge |
0.5C constant current (CC) charge to 73Vthen constant voltage (CV) 73V charge till charge current decline to ≤0.05C |
Charge time : Approx 3h |
Specification of PCM
|
Item |
Parameter |
|
|
Voltage |
Charging voltage |
DC:3.65V/cell |
|
Balancing voltage |
3.5±0.05V |
|
|
Current |
Balancing current |
25-35mA |
|
Self-consume current |
≤100μA |
|
|
Max. continuous charging current |
15A |
|
|
Max. continuous discharging current |
30A |
|
|
Over-charging protection |
Over-charging voltage |
3.75±0.05V/cell |
|
Over-Charge delay time |
500~1500mS |
|
|
Over-charging release voltage |
3.55±0.05V/cell |
|
|
Over-discharging protection |
Over-discharging voltage |
2.2±0.1V/cell |
|
Over-discharging delay time |
500~1500mS |
|
|
Over-discharging release voltage |
2.5±0.01V/cell |
|
|
Over-current protection |
Over-current（Discharge） |
100±20A |
|
Over-current delay time |
500~1500ms |
|
|
Release condition |
Remove load |
|
|
Short circuit protection |
Function condition |
External short circuit |
|
Short circuit delay time |
200~300us |
|
|
Release condition |
Remove load |
|
|
Impedance |
Protection circuitry (MOSFET) |
≤20mΩ |
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