Top positive review
15 people found this helpful
Shy-Watcher 7Ah battery
on 20 September 2012
As a keen astronomer I bought this battery to run either my computerised telescope mount or my dew prevention system. I found that it runs the mount for many hours but only runs for 3-4 hours whilst running the dew prevention system with two heating tapes.
The battery itself comes in a black plastic outer shell with ports for two cigarette lighter plugs. They are durable even when the temperatures outside get down below zero. The lamp at the front is powerful if you ever need to use it and I have found it useful when putting my gear away. I have not used the red light but it is a useful addition. It charges pretty quickly for its size and is light enough to carry around easily. I have given this battery 5 stars because of its usefulness, quality and design. If you are thinking of using it for astronomy though on those cold nights you might find the 17Ah version a better option.