Guang Zhou Sunland New Energy Technology Co., Ltd.
Guang Zhou Sunland New Energy Technology Co., Ltd. Your Personal Battery Expert! sales@tacbattery.com Mobile : 15813319221
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1. 12v 21ah Lithium battery pack assembled by LFR18650 1500mah 3.2v cell iwith 4s14p
2. the battery pack with waterproof housing and bms
3. Longer life, more than 2000 cycles base on 80% DOD
4. No memory effects
5. Low self-discharge rate, less than 3% monthly can be meet long time stock require
6. Environment friendly, Non-toxic, all raw material passed the Reach certification
| No. | Item | General Parameter | Remark |
| 1 | Rated Capacity | 21Ah | Standard discharge(0.2 C5)after standard charge(0.2 C5) |
| 2 | Minimal Rated Capacity | 19.6Ah | |
| 3 | Nominal Voltage | 12.8V |
|
| 4 | Cycle Life | Higher than 60% of the Initial Capacity of the Cells | ◆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 2000cycles |
| 5 | Discharge cut-off voltage | 10.0V | 10.0V( recommended) |
| 6 | Charging cut-off voltage | 14.8V | 14.6V (recommended) |
| 7 | Cell and assembly method |
|
|
| IFR18650EC 1.5AH | 4S14P | ||
| 8 | Housing material | ABS+PC housing |
|
| 9 | Standard charge | 0.2C constant current(CC) charge to 14.6V,then constant voltage (CC)14.6V charge till charge current decline to ≤0.05C | Charge time : Approx 7h |
| 10 | Standard discharge | Constant current 0.2C Cut-off voltage 10.0V |
|
| 11 | Maximum Charge Current | 1C | (0.2C Recommended) |
| 12 | Continuous Discharge Current | 1C |
|
| Peack Discharge Current | 5C |
| |
| 13 | Operation Temperature Range | Charge: 0~45℃ | 60±25%R.H.
|
| Discharge: -10~60℃ | |||
| 14 | Storage Temperature Range | Less than 1 year : 0~25℃ | 60±25%R.H. at the shipment state |
| Less than 3 months:-5~35℃ | |||
| 15 | Weight | Approx:2.9Kg |
|
| 16 | Max.Dimension | Height:132mm | 132mm*77mm*140mm |
| Width: 77mm | |||
| Length: 140mm |
