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How to Convert 12v 7Ah Lead Acid Battery Into 12v 16 8Ah Li Ion Battery Pack and 50400mAh Power Bank

1000A peak current, 20000mAh capacity. The digital LCD screen clearly displays the remaining power. 12v heavy duty portable power bank pack car jump starter lcd screen box multifunctional not only working as a jump starter and a power bank, it can also be regarded as a flashlight.