Active Member
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[China]
Address: Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Contact name:Jerry Yang
Shenzhen Topband Battery Co., Ltd |
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| NO. | Items | Characteristics | Testing Methods | |
| 1 | Nominal Voltage | 51.2V | Follow GB/T18287-2013> | |
| 2 | Nominal Capacity | 25Ah | Follow | |
| 3 | Minimum Capacity | 23.75Ah | Follow | |
| 4 | Battery internal Impedance | Internal Impedance≤80mΩ | Internal Impedance Testing Machine(1kHz ) | |
| 5 | Shipment Voltage | 51.2～54.4V | Multi-meter | |
| 6 | Dimension | Length | 318(±2)*165(±2)*215(±2)mm | Vernier caliper |
| Width | ||||
| Height | ||||
| Gross weight | 12.2±0.8 kg | 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 | 15A | ||
| 10 | Allowed maximum continuous discharge current | 50A | Pulse current 115A/3S； | |
| 11 | Allowed maximum reverse charge voltage | Not Allowed | / | |
| 12 | Allowed maximum charge voltage | 58.4±0.3V | Multi-meter | |
| 13 | Discharge cut-off voltage | 37~45V | Multi-meter | |
| 14 | Pack series connection function | None | ||
| No. | Items | Standards | Testing Methods |
| 1 | Internal Impedance | Impedance ≤80mΩ | Under 20±5℃ Environment Temperature , the Usage Frequency of Fully Charge( 1KHz) , Use AC Internal Impedance test machine to test |
| 2 | Nominal Capacity | 25Ah | Rest for 0.5~1 hour after fully charge, Using electrical loader to connect with the battery output port, and discharge with constant current 0.2C till it can’t discharge. Do the cycle three times, if there is one time that the discharge time is equal or more than 285minute, you can stop. |
| 3 | Short circuit protection | NONE | Prohibit output electrode short circuit |
| 4 | Allowed Maximum continuous charge Current | 15A | charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃. |
| 5 | Allowed Maximum continuous discharge Current | 50A | Discharging with this current for more than 0.5h and the added temperature of battery pack less than 20℃. |
| 6 | Over Current Protection | 115~145A | Using electron load connect with output side, discharge with 115A for about 3sec Discharge with 145A for less than 40 millisecond, |
