ExpertPower 12V 21Ah Gel Deep Cycle Solar Battery, Sealed Gel Technology for Marine, Mobility Applications

Quality product, as described and size is correct. Once installed, the batteries charged correctly.

Excellent Battery

Bought this to replace aging battery on my reef aquarium APS. So far this item is working very well. This is definitely $$ saver as a new complete unit would have cost well over $170. I recommend this for anyone looking to not only replace but update an aging APS battery

good product

I bought this battery for my solar panel and it only lasted 4 months and would not take a charge from the battery charger, I reached out to the company they wanted me to jump through hoops to get it replaced even though it has a one-year warranty. When I complained, they told me I could pay to return it and they would test it and send me a new battery, which is not convenient. I did not think the request of having the battery replaced while it was under warranty and only 4 months old was too much to ask but apparently, it is.

This was fully charged when I received it and it spun the 13 HP Generator engine with ease. Started right up. It fit perfectly into the small space that is allowed for a battery. I got the gel type because of the indurance it has to the constant vibration it has during the lengthy run time. I gave it a 5 star rating but I can't be sure of the longevity because I have only had it a couple of weeks. Still I am very happy with it. I will probably buy a couple more within the next month.

I have been using this for a little while now on my Kayak to power my Fish Finder. I had a 7ah battery but found that it would die too quickly so upgraded to this one and so far it has been good for long days on the water.

work well