Celestron18774-CGL PowerTank 7, 12V -7Ah, Black

I run a Celestron NextStar 8SE and it powers everything at a breeze. well built, charges swiftly ,good torches and the FM/AM radio is good. very pleased with it.

Feels like a premium and robust power tank able to power a demanding mount for a few hours. I am not given the chance to take it out and try its capabilities yet, but I will definitely update my review, if the item does not meet my expectations.

My old skywatcher version being second hand was getting tired from over use. This celestron power pack is the same version just a bit more in price.

Bought two of these (£43) in Jan 2007 to run my telescopes etc. They were excellent, plenty of power to run LX8 and LX12 and lasted most of the night. Very easy to charge, great to have a fuze as a safety backup as well, yes they took a few hours to charge but with two I never encountered any problems.Unfortunately, the first one stopped accepting a charge back in early 2011 and the second in 2014. The 2014 one, nearly 7 years I though was reasonable but not the 2011, less than four years seemed far to short a lifespan. I still have them both as bricks in my shed, can't bring myself to dump them. :-)

Only used a few times for Astrophotography as not many clear nights this year. Charged it up and it only lasted just over an hour. Not any good for out in the fields. Poor battery.

Great. product and super essential for serious powered telescope owners like me. However one added bonus feature is the ability to charge a flat car battery. Not jump start but transfer charge from this battery to your cars. One dangerous point to note... as proudly and clearly stated in the instructions, this function is available weather the operating switches are on or off... that's right... it's always live and with washers around the terminals and no rubber caps, they are eternally exposed to stretched out fingers and a nasty 12v electrical shock. I have put my meter across them to test this and opened the case to disconnect this function permanently.This same model is also available with other branding and equally without which the latter reduces the price considerably... but beware the bonus car charge function. Some insulation tape will do but when connecting cables you will forget until you get a shock. Even short out the charger itself.! The next model up includes a radio but only one 12v socket so compromises are abound if you want to power the Scope controller and a dew shield... most necessary in the UK. I have also. modified the large torch with red film so setting up without losing my night vision is a thing of the past.... Overall a great buy... BUT don't kill yourself....seruously...get it professionally protected or disconnected.

Comes complete with adapter for connecting to telescope, even though it says that it doesn’t.Works well and if the motor speed is affected, then it doesn’t impact performance.

Be aware that this appears to be a later version of the Power Tank. There is no 3,6,9 volt output now but in it's place are two USB charging sockets. The small torch has a krypton bulb with a handy red cover to retain night vision. The larger lamp is an LED array which is quite bright and can swivel down. All in all this is still a very nice unit even without the 3 to 9v outputs (I already have a multiple output adaptor that will plug into one of the 12v sockets and these are quite cheap anyway). Still give it 5 stars as it is great for my Celestron Nexstar 127SLT. One other thing, definitely not for starting a car with a flat battery although the two big terminals on the back may come in handy.