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rebuilding cordless drill batteries
Topic Started: Dec 13 2013, 04:29 PM (1,617 Views)
sphenicie


Coche Blanco
Dec 21 2013, 01:27 AM
Hanuman
Dec 21 2013, 01:25 AM
i have a bunch of ryobi 18 volt tools, and the crappy batteries dont last long......the problem is the battery charger charges to fast reducing the life span quickly. they are expensive and even new provide poor performance.

my solution? MOT.
ill rewire a microwave oven transformer to out put 18-20 volts and 12 gauge wire......some of the tools draw 11 or more amps!

now i know what your thinking, thats gonna be a heavy set up, and its a little big to fit inside a gutted battery pack, so ill mount the MOT in a box, and run a cord to the hollowed out battery pack.
Hmmm...for some reason something doesn't jive here. Why not just use a corded tool to begin with? Because you've already invested in cordless?
CB, ever have to run out 200' of cord for a short little job, just to wrap it up again? or have to work in an area with 100's of places for a cord to tangle up? sure are nice at the bone yard. I hate to drag a generator out to the woods to build a tree stand. anywhere there is not yet AC, new building sites, roadside repairs, etc.

my cordless driver drill is my single most used power tool.
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Metromightymouse
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Powdercoat Wizard

sphenicie
Dec 25 2013, 09:22 AM
Coche Blanco
Dec 21 2013, 01:27 AM
Hanuman
Dec 21 2013, 01:25 AM
i have a bunch of ryobi 18 volt tools, and the crappy batteries dont last long......the problem is the battery charger charges to fast reducing the life span quickly. they are expensive and even new provide poor performance.

my solution? MOT.
ill rewire a microwave oven transformer to out put 18-20 volts and 12 gauge wire......some of the tools draw 11 or more amps!

now i know what your thinking, thats gonna be a heavy set up, and its a little big to fit inside a gutted battery pack, so ill mount the MOT in a box, and run a cord to the hollowed out battery pack.
Hmmm...for some reason something doesn't jive here. Why not just use a corded tool to begin with? Because you've already invested in cordless?
CB, ever have to run out 200' of cord for a short little job, just to wrap it up again? or have to work in an area with 100's of places for a cord to tangle up? sure are nice at the bone yard. I hate to drag a generator out to the woods to build a tree stand. anywhere there is not yet AC, new building sites, roadside repairs, etc.

my cordless driver drill is my single most used power tool.
sphenicie, I think you missed a detail. Hanuman is talking about taking the cordless tools, making an adapter, and running them with a microwave transformer. Meaning the tool is now corded instead of battery powered. Coche's question is simply "why not get a corded tool". I think he also already has the answer; because Hanuman already has the tool and it has become somewhat useless with bad batteries. Wiring it to a transformer makes it useful again. :thumb

Edited by Metromightymouse, Dec 25 2013, 09:31 AM.
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sphenicie


my bad. yes, I did misunderstand that. after review, the call on the field has been overturned.
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Metromightymouse
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Powdercoat Wizard

*insert referee emoticon here* :D :P
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Hanuman
"The Almighty Grounds Cleaner"

lol...... merry christmas guys
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Freeman
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The Family Man

The battery packs are much like wireless phones from the 90s. They are just AA or something strapped together and connected. I took my batteries to BatteriesPlus or something like that, a local store. And they replaced the batteries inside with their own. It's as good as new to me. Works just like the day I bought it. I think it was $20-30 for a battery. It was half the price of a new one or so.
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