I use this with ipower 700mah batteries and it works great.. The contacts hold up fairly well to repeated use.

Very very good charger and their iPower 9V lithium polymer batteries are great too! As a bonus it also charges all 9V NiMH, NiCD rechargeable batteries. A must have if you have equipment which use 9v batteries!

Just like rechargeable 9V batteries chargers are hard to find. I have chargers for all my other batteries (AAA, AA, C, CR123, 18650) so I just needed a 9V and this one does just fine. I've been using it with Ipower IP 9V 700mAh 7.4V Protected Lithium Polymer (LiCoO2) Battery and I haven't had any issues

Up to this point, all is well. Time will tell if the batteries are weight lifters or girly men.

Bundled with the iPower 9V batteries this is the perfect kit. Whether powered by 12V or 120V it works great!

These chargers are the best! Super fast and very efficient. I use them for rechargeables on my sound cart, and they really are the best

I have used this charger for over three years now and I have done so without a problem.

I am a musician and use the Li-Polymer 9v 520mAh batteries and love them! I can usually play 3 shows on one battery, and run them in all my wireless devices on stage. The charger is a different story. Used it for about 6 months, then all the lights on it would blink red and I never could get the thing to charge again. I only used the batteries it came with btw. So, no prob it had a 1 year warranty. Contacted this site, and they said it was a manufacturer warranty and gave me a website to contact them...except no contact info that worked. I couldn't get a response from anyone from the manufacturer. So now I have 4 batteries that are great but can only be used with this charger.

We are on our third set of 10. We use them once a week for three hours in wireless mics. Three consecutive sets of 10 have lasted about a year each, which is only 50 charges. Still cheaper than buying regular batteries, but not long-lasting.

An excellent product that very quickly and completely charges the 9V LiPo batteries also sold on this web site. I use these batteries and this charger in a very demanding environment and they out perform all others. Be very careful to set the small switch on the side of the charger to LiPo, NOT NiMH, to make sure you do not damage your expensive LiPo batteries.