2 Attachment(s)
Power box from Li-ion batteries
Since retirement my 18 volt ni-cad power tool batteries have expired from lack of use, as I still have 9 power tools I have upgraded to 4 Ah lithium. To get more use from these new batteries I thought a power box might be useful to use with my home made rotary tool and for use as a nickel plating current supply as voltage is easily set from 3 to 18V.
I used a dead radio as a socket mount but could have made something similar from wood. Nothing special inside just a cheap PWM board and a few bits I had in stock.
Since making it I have realised how useful it is to be able to work outside with better lighting than in the shop.
Attachment 23353Attachment 23354
Power box from Li-Ion batteries
Quote:
Originally Posted by
olderdan
Since retirement my 18 volt ni-cad power tool batteries have expired from lack of use, as I still have 9 power tools I have upgraded to 4 Ah lithium. To get more use from these new batteries I thought a power box might be useful to use with my home made rotary tool and for use as a nickel plating current supply as voltage is easily set from 3 to 18V.
I used a dead radio as a socket mount but could have made something similar from wood. Nothing special inside just a cheap PWM board and a few bits I had in stock.
Since making it I have realised how useful it is to be able to work outside with better lighting than in the shop.
Attachment 23353Attachment 23354
Say more about the PWM board, please. Schematic? Source?