This provides ample power to run a computerized telescope for several nights in a row, without having to worry about failing batteries.

This provides ample power to run a computerized telescope for several nights in a row, without having to worry about failing batteries.  Read Less

This unit has great consistent power and i even use it in my backyard instead of running the power from my house.

This unit has great consistent power and i even use it in my backyard instead of running the power from my house.  Read Less

I used this without problem for a few years until one day i accidentally plugged in a center-ground instead of a center-positiv...  Read More

I used this without problem for a few years until one day i accidentally plugged in a center-ground instead of a center-positive 12v power adapter.  Read Less

I've only recharged it once in about a month.

I've only recharged it once in about a month.  Read Less

I would have appreciated if the designers had spent 10 cents on a schottky diode to protect against reverse polarity power.

I would have appreciated if the designers had spent 10 cents on a schottky diode to protect against reverse polarity power.  Read Less

I'm glad i did because it was less money and has been working perfectly now for a few months now.

I'm glad i did because it was less money and has been working perfectly now for a few months now.  Read Less

Sometimes, online shopping sites that sell lots of these cheap, imported products like this often do not ensure that the produc...  Read More

Sometimes, online shopping sites that sell lots of these cheap, imported products like this often do not ensure that the products they sell conform to the same standards and regulations we're used to in the us, so it's up to you to determine if a product is safe and has all the necessary certifications, etc.  Read Less