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[China]
Trade Verify
Address: Room1148-1422,Dujuan Road,Yuelu area,Changsha,Hunan,China
Contact name:Leo Zeng
Deligreen Power Co.,ltd |
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Verified Suppliers
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Lithium ion battery for 3.2v 50ah for DIY battery pack electric vehicle lithium battery
| No. | Parameter | Specification | Condition / Note |
| 1.1 | Typical capacity | *50Ah | At a 1C discharge current (25±2°C CC+CV) |
| 1.2 | Minimum capacity | *50Ah | At a 1C discharge current (25±2°C CC+CV) |
| 1.3 | Operating voltage | 2.5 ~ 3.65V 2.5 ~ 3.65V 2.0 ~ 3.65V | -5°CwTw55°C -20°C^T<-5°C -30°C^T<-20°C |
| 1.4 | Impedance(lkHz) | <0.40mQ | at a fresh state |
| 1.5 | Shipping capacity | <30%SOC | SOC conformity at the same bath |
| 1.6 | Operating temperature (charging) | -15-55°C | See paragraph 2.2 |
| 1.7 | Operating temperature (discharge) | -30 - 55°C | See paragraph 2.3 |
| 1.8 | Weight | 1.18±0.2 Kg | including hard case and cap |
| 1.9 | Self-discharge | <3.5%/Month | Count after fresh cell need Standard Charge to 50%SOC and storage at 25±2°C for 3 month |
| 1.10 | Cell dimension | Reference specification 9 | - |
LFP Battery Cell Features
· Longer battery life – 6000times life cycle , 10 times more than lead acid batteries
· Low self-discharge
· Free of charge memory
· Wide temperature performance
· Steady discharge and charge performance
· Outstanding thermal stability
· Over charge and over discharge, over current protection, short circuit protection
| No. | Parameter | Specification | Condition /Note |
| 2.1 | Standard charge current | 1/2C | 25±2°C |
| 2.2 | Standard charge voltage | 3.65V | -15-55°C |
| 2.3 | Standard charge method | 1/2C constant current charge to 3.65V for cell, then switch to constant voltage charge until charge current declines to <3.0±0.3A | |
| 2.4 | Standard charge temperature | 25±2°C | 1/2C |
| 2.5 | Absolute charge temperature (Cell temperature) | -15-55°C | Stop charging once cell Temperature is outside this range regardless of the charging mode adopted |
| 2.6 | Absolute charge voltage | 3.65V max. | Stop charging once voltage exceeds this voltage regardless of the charging mode (including regeneration) adopted |
Discharging Parameter
| No. | Parameter | Specification | Condition /Note |
| 3.1 | Standard discharge current | 1/2C | 25±2°C |
| 3.2 | Maximum discharge current (continuous) | 1C | N.A. |
| 3.3 | Maximum discharge current (long pulse) | 2C | 120 seconds duration maximum followed by a “zero current rest period,, of same duration |
| 3.4 | Maximum discharge current (short pulse) | 3C | 60 seconds duration maximum while cell Temperature < 50°C and SOC>40%SOC; 10 seconds duration maximum while cell Temperature < 50°C and SOC<40%SOC; |
| 3.5 | Discharge cut-off voltage | 2.50V | -5 -55°C |
Regeneration
Regeneration means a cell is charged by pulse current regenerated during application. The regenerated voltage should be strictly regulated at all SOC and Cell Temperature. The magnitude and duration of pulse charging current should be strictly regulated according to the SOC and Cell Temperature listed on the table below. Regeneration charging of the cell outside this allowable condition may cause permanent internal damage to the Product and shall render DLG's warranties under the Contract inapplicable, thereby releasing DLG from any liability in connection therewnn.
Packing and Delivery
| SHIPPING CHOICE | ||
| Shipping Method | Courier | Shipping Time |
| Express Shipping | DHL | About 4-9 days |
| Fedex / TNT / Aramax | About 5-10 days | |
| By Air | About 4-7 days | |
| By Train | About 45-60 days | |
| UPS | About 15-22 days | |
| Standard Shipping | Alibaba Standard Alibaba Shipping | About 20-45 days |
| China post /ePacket | About 20-45 days | |
| There are many factors( holiday, extreme weather, airline adjustment, etc) may affect the delivery time,please take above prescription for reference only. | ||
The lithium battery is Dangerous Good for shipment by Sea and By
air and they should be shipped under the regulation of UN3480. All
EVL batteries are packaged by DG plywood case and we provide UN38.3
test report and MSDS.
Please check shipping cost before place order, the lithium battery
is Dangerous Good, the shipping cost is very different, so please
check shipping cost before place order.
RFQ
| No.1 | Q: Can you guarantee the quality with such a low price? | ||
| A: We have signed a long-term strategic cooperation agreement with battery manufacturers. All the prices are the lowest in the market, and cell consistency is good. We buy a lot at one time, so the price is very competitive. | |||
| No.2 | Q: Can you provide inspection report when delivery? | ||
| A: We can provide the manufacturer's test report and the original purchase contract. | |||
| No.3 | Q: How do you transport lithium batteries? | ||
| A: We have professional freight forwarding and export qualifications. We can ensure that the goods are received within 15-20 days after payment is received. | |||
| No.4 | Q: How are your batteries after sale? | ||
| A: We have a 10-year R&D experience of professional and technical team, can remote guidance or help customers solve problems on the spot. | |||
| No.5 | Q: What's the MOQ for lithium batteries? | ||
| A:We Support small order as one piece. | |||
