Page 1 of Battery question for Rob

Rob, I seem to remember you being knowable about batteries. If I'm mistaken, sorry.

So anyway my question is regarding a power tool that was designed to be used with a rechargeable Ni-cad battery. If I use a lithium ion battery in the tool, am I going to damage the circuit in the tool.
I'm looking at an angle head drill driver made by Ryobi. The current generation is about double the price of a used previous gen.
I don't think I will use it much after I use it for the job I'm looking at getting one for. But I really don't want to burn out the drill using my new gen battery.
Sorry if this is a bit long winded.
:)

This item was edited on Sunday, 15th July 2018, 16:39

Presumably the battery fits?
Is the voltage the same? The voltage is really the power or torque that you will be able to provide - the higher the better, but don't try one with a lower rating as it won't be powerful enough.
The Ah rating is basically how long the battery will last - again the higher the better (and the bigger the battery)

Ste

Shouldn't affect the tool at all, as long as the battery is the same voltage and is designed to safely deliver the same current requirements (if it isn't it'll get hot, and at the extreme it could catch fire), it should be fine.

Charging is a different matter, you shoudn't charge Lithium Ion batteries with a Nicad charging circuit.

As long as your new battery has it's own charger, and the voltage is the same as your old battery, all the danger of damage is on the battery side, not the power tool side.

Hope that helps!


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Thank you both for replying.
Yes, the newer battery fits into the older tool, it's Ryobi's One+ system.
The older type battery was 'I think' 14v. The newer batteries are 18v.
I don't own any Ni-cad batteries only the lithium ion current generation.

I noticed that the new drill is on Amazon prime day offer in half an hour, might end up buying a new one depending on price.

Thanks again :)

Unless there is a microcontroller in the tool, it's probably all analogue components, it'll probably be fine with the higher voltage. Just see how warm it gets in use!


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Ended up buying a new one but still appreciate the help given.
Got an angle drill & a cordless router. With the prime day discount & a student discount code I got the drill & the router for less than the normal price of the router.
I've had them both on my wishlist for months so I know there wasn't a sneaky price rise before prime day.

For sneaky prize rise checking, there is always uk.camelcamelcamel.com!

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