Hi Richard...
This is a good idea....as sil said be careful of the voltages.
You might find that these drop to below what the Mount needs...
I'd considered doing this on my Meade, but with 4 26650s and a regulator to
Give exactly 12v.
You should get a few hours out of this - I drive my lx90 all night with a 2.2 ah SLA.
And your batteries should be about that.
Don't charge them in series. If one lets go or shorts it will take out the other two.
A proper charger for these can be found on eBay for not much $
|