♦ GeePower battery cells Charateristics
• Soft polymer pack ,electrolyte reduced design, can be operated in any position.
• Low internal resistance.
• Flexible design to meet customer’s unique requirement.
• Basic cells are mass produced and easy to build stable and consistent large capacity battery packs.
• Suitable for high rate charge and discharge.
♦ GeePower battery safety performance
| Item | Test name | Result | Test Method |
| 1 | Over charge | No fire,no explosion | After standard charging,then Charge at 3C5A to 10.0V |
| 2 | Over discharge | No fire,no explosion | After standard charging,discharge 0.3C5A to 0V at 20°C±5°C |
| 3 | Short Circuit | No fire,no explosion | After standard charging, keep the battery into a ventilation cabinet and shortcircuit the positive and negative
terminals directly (general resistance shall be less than or equal to 5mΩ) for 10 minutes |
| 4 | Drop | No fire,no explosion,no leakage | After standard charging, then let it self fall off from a height of 1.5m(the lowest height)to a rigid wooden board with the thickness of 20mm. The drop is implemented one time for every face. |
| 5 | Hot oven | No fire,no explosion | After standard charging. Keep the battery in the box with constant temperature of
85°C±2 °C and remained for 2hours at this temperature. |
| 6 | Crush | No fire,no explosion | After standard charging, keep the battery on the bracket
|
| 7 | Needle puncture | No fire,no explosion | After standard charging, keep the battery on the bracket,penetrate through it with a 3mm~8mm
diameter nail near the center of its biggest surface at the rate of 10mm/s-40mm/s. |
♦ GeePower battery safety testing (No fire, no explosion, no leakage)
♦ Battery quality control for after-sale
All of GeePower battery cells in a pack are with very high consistency.In a pack, each cell has its own sole electronic code(ID number) for quality control after-sale. Assume one cell in a pack is damaged in any reason after several years later, we could provide a exactly same cell to the client to replace this damaged one(same voltage, capacity, impedance,etc.), in order to make sure all of the cells in this pack with very high consistency. G-Power has a strong system working for this.
