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After charging, it is necessary to be able to use the relevant instructions to check the voltage, usually between 4.1v and 4.2v, so that the charging is fully charged!

My friend bought this 8100 in October 2000. The battery has been broken for over a year. The remaining battery is always 0%, and the charging indicator light is always green. A friend once used my introduction to the discharge method and ventured to short-circuit the positive and negative electrodes. Originally afraid, waiting for sparks to fly, silent characters. Find a multimeter with zero voltage. Then use the current of the multimeter to stop the discharge, from high to low, for the purpose of no current. At this point, the author is puzzled, is there a circuit inside the battery pack? Then, when selecting a dead horse and a live horse doctor, flip the battery once to complete DIY.

This battery pack consists of 8 Panasonic lithium-ion batteries, each of which is larger than the usual NO. 5 batteries and two smaller circuit boards. Each two batteries are connected in parallel and then connected in series. Use the voltage range of a multimeter to measure the two poles of a group of parallel batteries, with a voltage of approximately 4V. Measure again with the current block (2.5A), quickly touch, hit the pointer to the far right, and see sparks splashing. It seems that these two batteries are dead! In this sequential measurement, the last two batteries in parallel have neither voltage nor current, and the resistance value is infinite, which seems to be the problem.

The next two welding doubts are treated with batteries, followed by discharge and high-voltage shelling methods, with no reaction in use. Faced with the remaining 6 good batteries, can they replace this burden? Remove one of the batteries with a soldering iron and place it in its final position. In this way, four batteries are connected in parallel with each other and connected in series with the other two batteries, resulting in a voltage of approximately 16V. Then remove two waste batteries, cover them, and install the machine.

Firstly, charge for approximately 1 hour and 8 minutes in the off state. The charging indicator light will change from orange to green. Turn on the power, turn on the meter, and the remaining power of the flash battery is 23%! Flash is charging! It seems that the charging indicator light is not indicating correctly. Continuously charge under startup conditions (the charging indicator light is always green at this time). After about 20 minutes of charging, the flash power is 100%.

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