Quote:
Originally Posted by julianh72
Most telescope mounts draw 1 amp (or significantly less) on average when tracking at sidereal rates (peaking at over an amp for full-speed slewing etc), so a 7 Ah SLA is probably good for 10 hours or so of constant use. (YMMV)
|
10 hours if you wanna discharge the battery near zero... which you do not want to do. SLA will not cope with constant deep cycles.
Always calculate using maximum draw to ensure extra headroom and avoid disappointments.
Aim for 14Ah or more, AGM if possible.