Celestron Power Tank by Celestron
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List Price: Our Price: $54.95 You Save: $35.00 (39%) Availability: Usually ships in 1-2 business days Buy Used: from $52.84 (click here) Category: Digital Camera See more digital camera details and other models |
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Digital camera reviews of Celestron Power Tank
Digital camera Review: Charger hard to repair
Summary: 3 Stars
I have a 7 Ah unit and have been using it for years. Not bad for what it is -- after all, deep down it's just a 12V lead-acid battery. But one fine day it just stopped charging. At first I thought the battery was dead and so I went to Radio Shack and bought a new one for $15. It isn't hard to replace and all the lights lit up and everything, but still no charging. Then I did what I should have done in the first place -- measured the output voltage of the 15V power adapter. No voltage to speak of. Then I tried to repair the adapter itself but it turned out that one needs a screwdriver with a triangular tip to open the protective cover of this thing!! No hardware store in my area (and I checked quite a few) had such an outlandish screwdriver. For that matter, I couldn't find a replacement either. It is hard to find a 15V adapter; most power supplies out there are 6, 9, or 12 volts. In summary, I'm left with a functional main unit and no easy way to charge it up. So, buyer beware: if something stops working you may well have to buy a brand new one.Digital camera Review: Decent power for field use
Summary: 4 Stars
This battery unit has been usefull to me in the field as long as I don't use a dew zapper for too long (more that 4 hours).I live in Montreal where it gets pretty cold in the winter (typical viewing session this winter was below zero F.) Using a dew zapper to keep the corrector lens of my Mak clear of frost will drain the unit in about 4 hours
If I use a dew shield and only use the zapper occasionally, I can use it all night but some nights, the humidity gets so high that the dew zapper needs to be on almost continuously, and this is where it is slightly underpowered for a full night of use. And since my telescope drive is also connected to it, I've had to shut down on some nights prematurely.
All in all, a pretty good unit
Digital camera Review: Don't Buy!
Summary: 1 Stars
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.
Digital camera Review: Essential gadget for large electronic Telescopes
Summary: 4 Stars
I used my Power Tank (17Amp version) for a whole year. After many months of bad weather, I stored it away with my Telescope. Six months of unattended storage were enough to kill the battery. I should had read the manual before putting it away for so long. These tanks need to be recharged at least once a month in order to preserve the cell inside. These power tanks contain a sealed dry 12Volt battery cell inside. One can probably replace it, but it in my case, the cost for the 17amp version is roughly $40 plus the risk of installation. I decided to get a new Power Tank 7Amp version because it is more than enough for my Telescope (Meade LX200GPS). In conclusion, the power tank is a must have for large 12Vdc telescopes, but one must take very good care of charging it at least once a month in order to get maximum lifetime of the product.Digital camera Review: Fantastic Power Tank
Summary: 5 Stars
The Celestron Power Tank is very useful. I bought it to power my Celestron Nexstar 8 SE telescope, since 8 "AA" batteries do not last very long in it. With the Power Tank I can use my scope all night. It also came in handy when Hurricane Humberto knocked our power out. I used the Power Tank to power my portable TV so I could watch the storm coverage on the local news. I used the built-in flash lights during the storm, too. The Celestron Power Tank is a great product!