Rechargeable batteries are only 1.25V whereas normal disposable batteries are 1.5V so you're often better not using rechargeables in critical equipment which might be voltage sensitive.
 
Rechargeable batteries are only 1.25V whereas normal disposable batteries are 1.5V so you're often better not using rechargeables in critical equipment which might be voltage sensitive.

Metrel's are designed to run on rechargeable though and has the recharge functionality built in to the box
 
I use energizer rechargeables. They come in different mAh ratings, go for the highest. On my Megger I have to tell it I'm using 1.2v instead of 1.5v. Think I paid around £25 for the charger and 8 batteries.
 

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rolyberkin

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Batteries for MFT?
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UK Electrical Forum
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