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 | 12.8V | Follow | |
| 2 | Nominal Capacity | 25Ah | Follow | |
| 3 | Minimum Capacity | 23.75Ah | Follow | |
| 4 | Battery internal Impedance | Internal Impedance≤50mR | Internal Impedance Testing Machine(1kHz ) | |
| 5 | Shipment Voltage | 12.8～13.6V | Multi-meter | |
| 6 | Dimension | Length | MAX: 184*74*136mm | Vernier caliper |
| Width | ||||
| Height | ||||
| gross weight | 3.1kg | 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 | 10A | Multi-meter | |
| 10 | Allowed maximum continuous discharge current | 40A | Pulse current 300A/2S | |
| 11 | Allowed maximum reverse charge voltage | NO Allowed | / | |
| 12 | Allowed maximum charge voltage | 14.6±0.1V | Multi-meter | |
| 13 | Discharge cut-off voltage | 9±1.0V | 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 0.2C 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 0.2C 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 0.2C 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 | |
5. Warning & Tips
Please read and follow the specification and caution remarks on
battery surface before use the battery. Improper use may cause
heat, fire, rupture, damage or capacity deterioration of the
battery. Shenzhen Topband Battery Co., Ltd. Describes is not
responsible for any accidents caused by the usage without following
our specification.
6. Deep cycle lithium battery 12V 25Ah dimension
