dead batteries

Batteries for 2 garden tools were left uncharged for 2 years (a health prob) Now wont take charge. Chargers and engines have been checked. Any solution? New batteries cost nearly as much as the complete machines!

Reply to
Jaime Dixon
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Do I spy a bowl of Petunias?

Reply to
Dave Liquorice

Now wont take charge. Chargers and engines have been checked. Any solution? New batteries cost nearly as much as the complete machines!

What type and rating of battery?

Reply to
Andrew Gabriel

Now wont take charge. Chargers and engines have been checked. Any solution? New batteries cost nearly as much as the complete machines!

Probably not. What sort of battery powered garden tools were they?

You may as well throw out any battery powered hedge trimmers for starters they are too heavy and useless. On a full charge they last at most 15 minutes and then take over an hour to recharge to do it again.

Depending on the battery technology you might get away with dismantling the battery pack and fitting some replacement cells from Rapid or Maplins depending on how much you want to pay for them.

However, if you get it wrong they could potentially catch fire. One reason that battery packs go dead eventually is that they are designed not to catch fire and fail safe when the weakest cell fails.

NiCd and NiMH are not too fussy, but Li-ion is incredibly prone to self immolation as Boeing 787 designers know all too well! Basically if it is Li-ion you need the right official replacement unit to be safe.

The other battery technologies are potentially DIY repairable iff you know what you are doing but since you had to ask you probably shouldn't.

Reply to
Martin Brown

Well the only suggestions I have are to look for some cells that will fit inside the pack assuming you can get inside it without destroyin it in either case. Often they use standard cells but with tags spot welded on so they can be wired up.

Brian

Reply to
Brian Gaff

They ALWAYS use standard cells. getting new ones is not hard, but not cheap - about 70% of te cost of the tool originally is in the batteries.

And garden tools with batteries are pretty useless - the best I have seen us backpacks of batteries and a short cord to the actual tool. These are not so heavy to move around ..

I would suggest the OP takes heed, reviews the options and makes a sensible choice. In my case its all gone 2-stroke, or indeed, because hedges are once a year things, getting a man in who has better tools than I can afford to buy and use once a year only.

Reply to
The Natural Philosopher

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