nickwilliams
Well-known member
Has anyone built up an external battery pack of big NiMH batteries for use drilling shot holes with a Bosch or Hilti drill? If so, what did you use and what's been your experience of using it? How do you charge it? Have you got any direct comparison information (e.g. length of hole drilled) with other battery technologies?
I've yet to see anything better than the 22 cell 'F' sized NiCad pack which I have for my Hilti TE5A, but I'm interested to know whether NiMH's have come far enough to be considered a viable alternative yet.
And, before you bother, experience tells me that the conditions of use for a drill used for shot holes are such that comparisons between different battery packs used for other applications are not much help - comparing the behaviour and capacity of 'AA' or "C' sized cells used for lighting or drilling small bolt holes ain't going to tell me what I want to know.
Nick.
I've yet to see anything better than the 22 cell 'F' sized NiCad pack which I have for my Hilti TE5A, but I'm interested to know whether NiMH's have come far enough to be considered a viable alternative yet.
And, before you bother, experience tells me that the conditions of use for a drill used for shot holes are such that comparisons between different battery packs used for other applications are not much help - comparing the behaviour and capacity of 'AA' or "C' sized cells used for lighting or drilling small bolt holes ain't going to tell me what I want to know.
Nick.