Quote:
I bought a hedge trimmer and a cutter both battery operated.
Didnt use (medical reason) for 2 years. Now cant get batteries to
take a charge. Have checked charger and engines, all okay. Is this
normal? Any solution?
As others have said, after two years it's likely that they will have
failed, particularly if they are lead acid.
However it would do no harm to leave them on charge for a day or two
and see if they can at least partly recover, before laying out your
money on a new set. Just check the charger from time to time to
check that it's not getting too hot, which it might possibly do if
the battery has gone short-circuit. That's unlikely though - they
are more likely to have gone high-resistance and not accept a
charge.
That is some very, very bad advice.
Don't do that.
Please explain why it's very bad to attempt charging a sulphated lead
acid battery, Baz.
I'm interested to learn.
Don't hesitate to use specific technical terms - I am qualified to
understand.[/i][/color]
Only because I have seen, and been to board up homes who's occupants have
bought fake items and fires have resulted.
A big % of these have come from scam batteries and chargers.
No smiles here RG.
[/i][/color]
Err yes. I understand your concern about fake items.
But how does that apply to the OP, whose problem is due to putting his
equipment into store for two years.
I don't see any suggestion that those are 'scam' items.
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Lithium batteries have a history of catching fire, indeed they brought down a 747 in Dubai recently when a cargo container of them caught fire.
It's mainly due to charging the battery faster than it should be, causing minute lithium dendrites to form on carbon anodes which in turn cause short circuits which heating the battery up beyond it's safe level. So make sure it's the right charger for the unit when you use it.
I've never heard of lead acid batteries catching fire, as such, exploding due to blocked vents happens occasionally though or melting when someone drops a spanner across the terminals.