Hi,

Lacking the charging controller in mine, what would be a good approach to go about and build one?

Need to replace the battery setup in my XSRM setup too, the packs I installed is now dead.

Tempted to think in terms of LiFePO.

Cheers,
Magnus

On 11/21/2015 03:45 AM, Dan Rae wrote:
On 11/20/2015 4:54 PM, Bob Camp wrote:
Hi

I don’t in any way doubt your count. If indeed they are putting 21
cells into that circuit,
the NiCads likely don’t last as long as they might with a different
charging circuit ….

Bob

Bob, I was answering Corby's query; mine had an original -hp- battery
pack which I assumed was designed by someone who knew what they were
doing, so I just put new Chinese made 2.2 Ah Nicad cells in it, exactly
the same number as the original, however I don't know the capacity of
the originals, they were unmarked.  Five or six years later it still
will hold the thing up for at least twenty minutes, which I would think
is what matters.

It would in any case be difficult to fit any more than 21 in the space
available.

Dan

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