Quote:
Originally Posted by MorTech
You should charge the battery in a cool place...Like inside the house and not in hot garage.
Keeping the battery cool is key to longevity.
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Like so many things, people do not read or follow instructions. All, higher volt batteries are a pile of cells. For example a 12 volt car battery is lead acid, each cell is 2 volts so a 12 volt batter is 6 cells. You will find there are 5 caps to add water. I don't recall, easy to look up. If lithium ion batteries are 1.5 volts, a 40v battery will be 27 batteries wired together. The point it is only as good as the weakest cell-battery. If, you run it down too far, the stronger cells reverse the polarity on the weakest cell and the battery is done..
With a 40v lawn mower. In say the winter, you put it away and forget to recharge it. The batteries have stand by losses. It can go down too far and it will not recharge.
Companies say so many charge cycles. You will get far less than that if you run it all the way down and far more than that if you do not run it all the way down. Lithium ion batteries do not have a memory as nicads do-there is no need to run them down.