Home > Consumer Reviews > Celestron Power Tank

Bought the 7AH version a couple of years ago. The floodlight never worked due to a broken switch, but I didn't bother to ship it back since I only wanted the battery to power my mount. (First thumb down if you actually want a working flood.) I probably got 20-30 observing sessions out of it with no apparent problem. It will certainly run the drive for several hours if you don't also have your CCD or dew heater plugged in.

Unfortunately, it's been in the closet for over a year and will no longer charge. Could be the typical problem of a cheap battery not being cycled for an extended period of time. Or could be the fact that the charging unit is putting out 2.5A at 22V when it's rated for 500ma/15V. Lol... (Second thumb down.)

I use this with my NexStar 6SE. I don't know how one can use the telescope without this. Simply 'a must'.

I've received two Celestron Power Tanks from Amazon so far and neither would accept a full charge after 23- and 24-hours, respectively. I notified Celestron Customer Support of the problem with the first Power Tank and they said it was defective as is should have charged within 12 hours. Amazon.com was very prompt about sending me shipping instructions and a replacement. However, the second battery was also defective. I contacted Celestron Customer Support again and they apparently passed the problem on to Amazon.com as I soon received an email from them saying they would send me another replacement however I would have to pay the postage to return the second defective one.
Save yourself time, aggravation and expense - don't order a Celestron Power Tank.

While I find little use for the light sources during my night sky viewing (they are too bright), it is just fine for a portable power source, which is what I bought it for. It has ample power for my celeston telescope. I have not tried to use it all night but it works for several hours on two nights without recharging. I have found this product to fit with my views of my other Celestron products they seem to do what they are supposed to do.

Works as advertised. Easily powers your telescope for hours of star gazing. Can give you subdued red "night" light so you don't stumble around in the dark while preserving night vision. Rugged and durable with multiple charge ports it gets the job done and then some...