3.7 V Aaa Rechargeable Battery

Eartec Rechargeable 3.7V Lithium-Ion Battery for UltraLITE & HUB Systems

The light is easily the most powerful pen light I have ever owned. I also really like that you can use a rechargeable battery or two AAA batteries. The build quality is excellent, I have dropped mine numerous times and there is no problems. Definitely a high quality product. One of my coworkers bought one as well after seeing how good mine is!

I ended up using this receiver. It takes rechargeable AAA batteries which is more economical that than the battery in the ShutterBoss lll receiver.

The pen accessory for my tablet drains the necessary one AAA battery. A rechargeable battery was required. I also bought the charger with the four AA batteries. I carry a few charged batteries with me. Works out well.Price better than @.

Hi, Upon receiving the rechargeable battery, I charged it up. I then removed the supplied 3 AAA batteries from the headlight and placed the rechargeable battery in. It fit perfectly and worked perfectly! Thank you and keep up the good work. Nothing like having a good rechargeable battery and if ever in a pinch, I can always put in the 3 AAA batteries.

If you use rechargeable AA's or AAA's, you should have a decent charger. Most chargers charge in banks of 2 or 4. That means that the battery will be treated the same as its neighbor. Better chargers charge each battery independently of the others. This way, the batteries get what they need. The best chargers give you metering on each battery. I've always had good luck with Watson products. This charger keeps the streak going.

Great light does what I want is bright for size of you use 3.7v rechargeable it is pretty bright,. Only complaints is it is not as bright as the hp1 that this flashlight replaced on there market and the red ring on the tail cap so I use a old hp1 cap also doesn't have the anti roll thing so it will roll off a uneven surface

I have a Streamlight Polytac flashlight that only accepts 3v cr123 batteries. all other rechargeable cr123 batteries are 3.7v which is too much voltage, but these Watson batteries work great. I love how these Watson batteries came completely sealed. B&H photo seems like the only place that carries them. I hope they don't ever stop!

These new V.3 pouches are even better than the V.2. The rain covers are designed much better!

happy about it after i found rechargeable Sony AAA batteries already dropped it on water; still fine.