Name: 26650 12V 20Ah LiFePO4 battery pack with built-in BMS
Brand: O'CELL
Availability: InStock

Product Details

1. Technical Data Sheet

No.	Item	General Parameter	Remark
1	Rated Capacity	20.0Ah	Standard discharge (0.2C) after standard charge (0.2C)
2	Minimal Capacity	19.2Ah	Standard discharge (0.2C) after standard charge (0.2C)
3	Nominal Voltage	12.8V
4	Life Expectation	Residual capacity is more than 60% of the rated capacity.	Charge: CC @ 0.2C to 14.6V, then CV till current to 0.05C. Rest: 30min. Discharge: 0.2C to 10.0V. Temperature: 20±5℃. Carry out 1500 cycles.
5	Discharge cut-off voltage	2.0V/cell (≥8.0V)	10.0V recommended
6	Charge cut-off voltage	3.9V/cell (≤15.6V)	14.6V recommended
7	Assembly methode	IFR26650EC-3.3AH	4S6P
8	Housing material	ABS
9	Standard charge	0.2C constant current (CC) charge to 14.6V, then constant voltage (CV) 14.6V charge till charge current decline to ≤0.05C	Charge time: Approx 7.0h
10	Standard discharge	Constant current 0.2C. Cut-off voltage 10.0V
11	Maximum continuous charge current	20A @ 20℃
12	Maximum continuous discharge current	20A @ 20℃ (35A for 20 minutes)	Over-current 140±20A, 8~16mS
13	Approx. weight	2.55kg
14	Dimension	L181W76H166mm
15	Short circuit protection	Recover after charging
16	Cell balancing	80±10mA
17	AC Impedance	≤35mΩ	@ 50% SOC
18	Operation Temperature Range	Charge: 0~55℃	60±25%R.H.
18	Operation Temperature Range	Discharge: -10~60℃	60±25%R.H.
19	Storage Temperature Range	Less than 1 year: 0~25℃	60±25%R.H. at the shipment state
19	Storage Temperature Range	Less than 3 months: -5~35℃	60±25%R.H. at the shipment state

2. Protection Circuit Module

Charging voltage: DC 3.65V/cell
Balancing voltage: 3.6±0.025V/cell
Balancing current: 80±10mA
Self-consume current: ≤30μA
Max. continuous charging current: 40A
Max. continuous discharging current: 40A
Over-charging voltage: 3.90±0.025V/cell
Over-charging delay time: 0.7~1.5S
Over-charging release voltage: 3.8±0.05V/cell
Over-discharging voltage: 2.0±0.05V/cell
Over-discharging delay time: 80~200mS
Over-discharging release voltage: 2.30±0.1V/cell
Over-current voltage: 0.15±0.025V
Over-current protection: 140±20A
Over-current protection delay time: 8~16mS
Release condition: Remove load then charging
Short circuit protection: function condition external short circuit, delay time 380~660μS, remove load then charging.
Impedance: protection circuitry (MOSFET) ≤20mΩ
Operature temperature: -40~+85℃
Storage temperature: -40~+125℃
Size: L140*W50*T10.5mm

3. Terms and Conditions

Currency: USD
MOQ: 50 pcs.
Freight: FOB China Port.
Lead time: Production volumes 30 days Mfg. + 40 days transit = About 10 weeks in total
Quote validity: 2017/8/31
Sample lead time: About 30 days production + transit time
Sample cost: Same as 50 pcs. + additional freight costs for small quantities