Celestron PowerTank Lithium (18771)

Good quality build and easy to use. The only negative thing about it is the strap to attach it to the telescope leg. Very difficult to adjust it from sliding down the leg.

Celestron Power Tank

Very happy with the service from Astronomy Plus. Order arrived very promptly and the Power Tank is quite suitable for my equatorial mount. Astronomy Plus seems to have an excellent range of astronomy equipment and I expect to deal with them agsin in the future.