power supply

[tomlines]

hi guys

really dont wanna spend the mad money sky watcher want for there power tank so im looking at alternatives

what should i be looking for?

id charge the unit as often as possible so no need for enormous Amp Hours

i originally only looked for units with 2 12v outputs untill i seen this

Halfords | Type S Multi Socket

and figured that could be used right?

or possibly just one of these as i could use my laptop aswell

Heavy-Duty 6-in-1 Jump Starter with Air Compressor and 140W Inverter : Jump Starters : Maplin Electronics

at 8ah am i right in thinking you divide it by 3 if your using 3 devices on it?

my laptop and two telescope power supplies

thanks for any help guys

[mallorcasaint]

I have a Maplins 17aH jump starter which is great but many recommend leisure batteries as an alternative.

[tomlines]

leaisure batteries are as much as the power tank tho arent they?

what do you power from yours?

[mallorcasaint]

I use the Maplins jump starter to power the mount and I have a small 7ah to power my laptop and camera.