Just a passing thought as I've just bought a Lidl cordless power washer with a couple of LiIon batteries.
The charger takes them to 100% I read that they should be stored below 80% for long term life. How do you control this?
Cheers
Dave R
One of my laptop batteries has an array of leds which show how much charge is left in it. For everything else, I just guess. If I am going to put the kit away for a while, I charge it up fully then run it down a bit.
Nick
Both my smartphone and laptop run (manufacturers) software to only charge the batteries to 80 or 85%. On both these devices this only works while the equipment is on or in standby or hibernation. If the devices are fully off the software doesn't run and if the charger is left connected the batteries will charge to 100%
I think that's true for things like laptops where you charge it every day, so it can recognise your usage and charging pattern. For power tools they don't know when charging whether that was the last lawn mowing of the season or if you're going to mow Wembley tomorrow and need every drop of power. Also, the standalone batteries don't have anywhere to dump excess charge if they decide that it's been a while and to go into storage mode.
If you know you're going to store it, charge it up then run it down a bit. But probably only worth doing this if you know you're not going to use it for months - if it's a few weeks then full is probably fine.
Theo
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