Chosen Solution
I’ve had this DC970 for a while after the chuck failed and I had to break a busted bit out and oil the chuck to hold up. I’ve always jokingly said my oiled chuck will last longer then the 2010 batteries and I was right. One of my 2 batteries is at the point it initially had 16.54V with 3 bad cells and all of the remaining cells held a perfect 1.3V. I recently found out that the cutoff is 5.59V, so I investigated the state of the pack so I know what it’s current state is. As it stands the battery went down from 16.54V (respectable amps left) to 13.43V (1A left) with one charge. I opened the pack to inspect the individual cells so I know the cause of death and I noticed 4 cells are now dead (formerly 3) and 2 of the cells dropped to 1.2V (out of 15). I didn’t see this as an issue because I knew it was dying and I’d eventually lose it. The problem is the DC970 starts to slow down (but doesn’t get crippled) at 13V, which is something I overlooked until I ran it to see what it’s going to run like from now on with that pack. This battery is effectively dead because of the massive voltage cut I took. This is a problem for most of my projects I use a drill for like drilling through thicker materials :(. I still have one more battery in descent shape (16.53V/1.08A from 18V/1.2Ah) but it’s dangerously close to death as it stands but has not been rebuilt nor considered for it (but it will probably need one sooner rather then later). Is there a way I can get it rebuilt with NiMh or Lithium cells economically? Seeing as it’s a 8 year old drill with a chuck that has been oiled, I (understandably) want to keep my costs down. NiCd is horrible and I don’t want to use it again. I know Dewalt still sells XR OEM batteries but the issue is they are still NiCd. The 18V Lithium battery appears to be discontinued and I’d need a new charger which would negate the cost savings and put me into new drill territory anyway. It uses 4/3 Sub C cells from what I can tell, so that’s what I’m dealing with.
As long as you meet the requirements of the drill for power, it doesn’t care where the 18v DC comes from. Here is a video specifically talking about converting to Li-Ion using what appears to be an R/C battery pack. This way you can use a standard R/C charger for it. https://www.youtube.com/watch?v=J0ENDuW7…
Se pueden recontruir las baterias con otra tecnologia de litio , te adjuntare un video de youtube para que lo veas , las pilas que utilizaras seran las 18650 , la capacidad de la mismas es a elegir , contra mejores pilas 18650 montes mas te aguantara trabajando la maquina , aparte de las pilas tendras que comprar un controlador que gestiona la carga de las nuevas pilas y la potencia que entrega al taladro , pero esta todo muy bien explicado en el video . https://www.youtube.com/watch?v=dIFGLOCE…
