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13.03.2016, 20:51 | 1 |
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Регистрация: 03.07.2010 Последняя активность: 10.10.2022 08:53 Адрес: Copenhagen, Denmark
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Test/Review of GB 8.4V (7.2V) 6800mAh battery pack
GB 8.4V (7.2V) 6800mAh battery pack
Official specifications:
Inside the rubber is some shrink wrap around the cells. The protection circuit looks like it checks all cells, but it do not have balancing. There is no strain relief on the cable. Connection cable is slightly above 0.5meter. The protection circuit, one chip and two dual transistors. Capacity varies with load and due to cable/connector resistance (Both pack and my test cable) the over discharge protection kicks in at different voltage (At the battery it will be 6 volt all the time). I wonder why the 5A trace has as little capacity as it does. The Panasonic NCR18650B cell can handle 5A. Conclusion I like the rubber packing and the supplied pouch, this makes it fairly easy to mount on a bicycle and gives some protection for bumps. The pack can deliver the rated current, but not more than that. The missing strain relief is rather bad. Notes and links The battery was supplied by Gearbest for review. How is the test done and how to read the charts
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