With people staying at home, and with the recent spell of sunny days and clear nights, a lot of people have been taking to astronomy as a new hobby. Amongst the large number of enquiries we have received, we have had quite a few regarding how best to power a newly purchased telescope.
Those who have bought a beginner/intermediate computerised GOTO telescope, such as the highly popular and easy to use Celestron NexStar SLT or Nexstar Astro Fi series, these can be powered from AA batteries. However, this method of power can end up being expensive in the long run, and also batteries can be affected by the cold during the autumn and winter months leading to unreliable telescope operation.
Celestron offer a range of three portable, Lithium-based rechargeable battery power supplies called Power Tanks: Power Tank Lithium LT, Power Tank Lithium and Power Tank Lithium Pro. Each power unit comes with a suitable charger and a velcro strap which allows the Power Tank to be securely mounted on a tripod leg so it is off the ground and out of the way (being a potential trip hazard!). The latter two battery packs also have a red light for night time use so do not to “destroy” your dark adapted night vision). The LT and PowerTank Lithium models can be used to power telescopes such as the SLT/AstroFi/SE series, with the high battery capacity Lithium Pro generally being used to power mounts such as the CPC and CGX ranges along with additional 12V accessories.
Please note: The old style lead-acid Powertanks are no longer available.