My son has so many toys that require batteries. I was tired of having to keep replacing them and tried this product out and they are great. This charges both AA and AAA and after several uses these have continued to hold up. I have bought more of the batteries and honestly I have no real complaints about them and they are affordable. I have not tried them with other brand rechargeable batteries so I don't know if it would work, however, they are compatible with the extra battery sets that their company makes. So far I feel like these are holding up longer than the cheap one time use batteries I normally use and its a win win for me!
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