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| Categories | Deep Cycle Lithium Battery |
|---|---|
| Brand Name: | Topband |
| Model Number: | TB7240F-S113A |
| Certification: | ISO9001, ISO14001, MSDS |
| Place of Origin: | China |
| MOQ: | 10pcs |
| Price: | Negotiable |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 450Mwh/year |
| Delivery Time: | 2~4weeks for samples; 4~6weeks for mass production |
| Packaging Details: | standard export carton |
| Material: | LiFePO4 |
| Norminal voltage: | 76.8V |
| Norminal capacity: | 40Ah |
| Cycle life: | ≥2000 (100% DOD) |
| Shipment Voltage: | 76.8～81.6V |
| Discharge cut-off voltage: | ≤65V |
| Internal Impedance: | ≤150mΩ |
| Warranty: | 2 years |
| NO. | Items | Characteristics | Testing Methods | |
| 1 | Nominal Voltage | 76.8V | Follow GB/T18287-2013> | |
| 2 | Nominal Capacity | 40Ah | Follow | |
| 3 | Minimum Capacity | 38Ah | Follow | |
| 4 | Battery internal Impedance | Internal Impedance≤150mR | Internal Impedance Testing Machine(1kHz ) | |
| 5 | Shipment Voltage | 76.8～81.6V | Multi-meter | |
| 6 | Dimension | Length | 530x240x222mm | Vernier caliper |
| Width | ||||
| Height | ||||
| Gross weight | Approx. 27kg | electronic scale | ||
| 7 | Working Temperature | Charge | 0~45℃,45~85%RH | Temperature & Humidity Instruments |
| Discharge | -20~55℃,45~85%RH | |||
| 8 | Storage Temperature & Humidity Range | Short: above one month | -20~+55℃,45~85%RH | Temperature & Humidity Instruments |
| Medium: above three months | 0~+45℃,45~85%RH | |||
| Long:above one year | +5~+30℃,45~85%RH | |||
| 9 | Allowed maximum continuous charge current | 40A | Multi-meter | |
| 10 | Allowed maximum continuous discharge current | 50A | 170A(8S) | |
| 11 | Allowed maximum reverse charge voltage | NO Allowed | / | |
| 12 | Allowed maximum charge voltage | 87.6±0.2V | Multi-meter | |
| 13 | Discharge cut-off voltage | ≤65V | Multi-meter | |
| No. | Items | Standards | Testing Methods | |
| 1 | Vibration Testing | The appearance of battery should not leakage, break or explosion | Fix a charged battery on a vibrating table, vibrate it for 90 minutes in three mutually perpendicular directions at the 0.8mm resonance. The frequency is to be varied at the rate of 1hz/min between 10 and 55 hertz. | |
| 2 | High Temperature Discharge Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than 255mins | Place a full charged battery under the environments of 55℃ for 2 hours. Discharge it at the current of 200mA to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours. | |
| 3 | Low Temperature Discharge Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than 180 minute | Place a full charged battery under the environments of -20℃ for 15-24 hours. Discharge it at the current of 200mA to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours. | |
| 4 | Constant Humidity & Temperature Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than180mins | Place a full charged battery under the environments of 40℃ and 90% - 95%RH for 48 hours. And keep it in the room temperature for 2 hours. Then discharge it at the current of 200mA to the cut-off voltage. | |
| 5 | High & Low Temperature Storage | The battery should be no remarkable breakage, distortion. And charge/discharge normally | Place a full charged battery in a oven with 55±2℃ for2 hours, then keep it under 20±5℃ for 4hrs, then place it in a oven with -20±2℃ for 2 hours, then keep for 4 hours under 20±5℃, cycle as high temperature-normal temperature-low temperature-normal temperature-high temperature for 10 times | |
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