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Charge fast and have held up very well.

Muy pobres en rendimiento para ser de Litio, si las quieres para una linterna o velas sin llama no duran casi nada en comparación de mis otras pilas de Ninh de ELB que me duran tres veces mas, ahorra tu dinero y ve por algo mejor.

These don't leak, YAY. They also don't have the energy density of alkaline batteries. For example, 3 aaa alkaline batteries last 8 weeks in my motion sensor bathroom light, these last about 2 weeks. Fortunately recharge time is under 2 hours.

the charger does what it is designed to do. Yet, I have found the Doublepow has added propriety features into their batteries that prohibit you from using other chargers. For this reason alone, I will not be purchasing anymore of their batteries. The batteries work fine so far but now I have to use another charger if I want to use Doublepow lithium batteries when I already have 2 chargers that charge lithium batteries. Thank for making life a little more difficult. That is just what I needed.

I bought this unit when my TV headphones stopped recharging its batteries. Pro: easy to use, kind of cool the way the batteries light up when charging, easy to load and unload in the charger. Cons: The batteries are supposedly 800 mAh. They are wildly inferior to the 700 mAh NiMH batteries they replace. I'd rate them at 200 mAh or less. They don't last but a couple of hours whereas the old batteries would last a couple of days with normal use. If you are buying this for the cool lights then go for it but if you want batteries that perform go elsewhere!

Do not by these. They are completely bad, they don’t last a single day.

These AAA batteries are ok, my only concern is the 1000 mAh rating.

Seems to be good rapid charging.