The small, portable and light Celestron PowerTank Lithium LT is an ideal power supply for those wanting to power their telescopes or accessories. It is ideal for powering telescopes such as the Celestron SLT, Astro Fi and SE series amonst others.
Unlike other Lithium-based supplies which initially supply 12V which drops off over time (the drop in voltage can cause telescope malfunctions), the LT’s Lithium Nickel Manganese Cobalt Oxide [LiNiMnCoO2] or NMC technology delivers a steady charge over long periods until the battery is depleted and then shuts off. The unit features two output ports: a 12V DC port for the telescope and a fast-charging 2.1A USB charging port for smartphones and tablets.
The powertank is supplied with charger (and different plug adaptors), telescope power lead and a velcro strap so you can attach the PowerTank to a tripod leg so it is safely out of the way and off the ground.
You can find out more about this accessory here.