We have just been buying batteries as needed for this, but sometimes we forget etc and the metal detector becomes no good.
Do we all think it would be a good idea to get some rechargeable batteries for this?
Li Poly 550mah
Li Poly 700mah (expensive)
I’m not sure theres any great advantage to going more expensive? I think the detector changes its behaviour as the voltage drops a bit, thats why the fine tuning dial is there, but whether better batteries would help or not i’m not sure.
For comparison, a bulk pack of 9v’s:
(not very eco friendly i guess)