Tenergy TN136 Smart 4 Bay 9V Charger with 4 Pack Tenergy 9V NiMH 250mah Rechargeable Batteries

I would absolutely buy this product again. Wounderful.

This is great. And the charge is really fast. I think it is about 2 hours or so. I had Tenergy 9V batteries but previously used a different brand charger. The other brand takes 12-15 hours and it is not auto shut off. This one, the lights will turn green when the charging is done.I use these in some wireless microphones that we use. And rechargeables is the way to go for that type of use since we go through 4 every shoot.If you are considering getting 9V rechargeables, get these and this charger. No problems so far after several months use.

Saves money on batteries and I love it

I like the fact that I can use these in high usage applications that I can rotate these batteries into. Beats replacing regular 9 volt batteries out all the time.

The sole reason that I bought these was to use them with Shure ULX wireless microphones. I didn't want to get stranded with quickly dead batteries - hard to replace batteries in a lavaliere mic in the middle of a presentation. I put them to the test. The batteries maintain a 'full' charge for a solid 3.25 hours - showing 3 bars on the mics. This should mean that they would live for another 3.25 hours before dropping from 2 bars down to 1. Unfortunately, this is not the case. After dropping to 2 bars, they only lasted for another 20 minutes before being completely dead.I was further hoping that this may be the case on the first charge - perhaps the second cycle would provide a longer charge. It did not.Four, solid hours is still a decent life for these mics. I would prefer a slightly longer warning for its death, however.

Each battery lasts about 4 hours in my Tens Unit which keeps me going all day. I highly recommend this for anybody who has a Tens Unit. I cannot say about other devices because of the amount of current they draw, but these are fantastic for my use. I love em and the money I am saving by using them.

Super fast shipping!

I have several Smoke alarms throughout the house that have to be changed every year. I have had success with other rechargeable batteries types (AA, AAA) and decided to go with Rechargeable 9v ones as well. I had used Tenery batteries before and have been completely happy with them. This was a 'no-brainer' for me and have had no problems with these either. I would definitely recommend them to others.

Muy buen producto, lo recomiendo