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 | |
| 3 | Nominal Voltage | 12.8V | |
| 4 | Life Expectation | Residual capacity is more than 60% of the rated capacity. |
|
| 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 | L181*W76*H166mm | |
| 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. |
| Discharge: -10~60℃ | |||
| 19 | Storage Temperature Range | Less than 1 year: 0~25℃ | 60±25%R.H. at the shipment state |
| Less than 3 months: -5~35℃ |
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
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