Shenzhen Handpack Technology Co., Ltd.
Shenzhen Handpack Technology Co., Ltd. Lithium Battery Leader
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12.8V12Ah Lead Acid Battery Replacement OEM / ODM
For Solar Storage System
Standard charge
Charge the battery with Lithium ion battery special test cabinet, supply 14.4V voltage, constant-current 0.2C(A) current until current down to 0.02C(A)
Standard discharge
Discharge the battery at 0.2C(A) to 10.0V or battery cut off voltage.
Technical Data
| Items | Standard | Remark |
| Nominal voltage | 12.8V | |
| Typical capacity | 12Ah | At 0.2C discharge rate |
| Max continuous discharge current | 15A | |
| Over protection current | 60±5A | 35±10 ms |
| Discharge cut-off voltage | 10V | |
| Charge voltage | 14.4±0.1V | CC-CV |
| Charge current | ≤ 5A | |
| Inner resistance | ≤50mΩ | |
| Operation temperature range | Charge | 0℃～+45℃ |
| Discharge | -20℃～+60℃ | |
| Storage temperature range | 0℃～40℃ | Capacity 80% |
| Humidity | 5%≤RH≤85% | |
| Shell material | ABS | |
| Weight | About 1.5±0.1Kg | |
| Size(L*W*H) | (151±1)*(98±1)*(95±1)mm | |
| Protection function | Over charge protection,Over discharge protection,Over current protection,Balanced function | |
Electrical Performance
| Test Items | Test Methods | Test Standards |
| Capacity retention rate | After standard charge under 5.1 specified conditions, store the cells for 28 days, then discharge at 0.2C(A )to cut-off voltage. | Capacity retention rate≥95% |
| Cycle Life | Standard charge at 0.2C(A),rest 0.5~1 h,discharge at 0.2C to cut off voltage rest 0.5~1h, repeat the above steps until 2000 cycles. | Capacity retention rate≥80% |
Advantages
FAQ
1. Are you factory?
A: Yes, we are factory at Shenzhen China. Welcome to visit our company at any time.
2. Do you have current sample in stock?
A: Usually we don't have, because different customers have different requests, even the voltage and capacity are the same, other parameters maybe different. But we could finish your sample quickly once order confirmed.
3. What's the delivery time for mass production?
A: Usually 15-25days, it depends on the quantity, material, battery cell model and so on, we suggest to check delivery time case by case.
4. OEM&ODM are available?
A: Sure, OEM&ODM are welcome and Logo can be customized too.
5. What is the normal lifetime about battery?
A: More than 800 times for lithium ion battery; more than 2,000 times for LiFePO4 lithium battery.
6. What is your MOQ?
A: 1PCS sample order can be acceptable for testing.
7. How to maintain the battery?
A: The battery should be stored in clean, dry, ventilated, dark environment
when not using,keep it after full charge, recharge it every 3 months or 6 months.
8. Why choose HANDPACK Battery?
A: 1) A professional sales team which provide consultant service and the most competitive battery solutions.
2) Wide-range battery products to satisfy different customer's requirement.
3) Quick response, every inquiry will be replied within 24 hours.
4) Good after-sale service, long product warranty and continual technique support.
5) With 15 years-experience for manufacturing lithium battery.