Comments on: Rechargeable 9 Volt Lithium Polymer Batteries: Efficient

By: Don

Don — Wed, 18 Nov 2009 00:10:11 +0000

I’m sure many toys still require 9V batteries but as an adult there are also many applications for 9V batteries, clock radio back-up, all forms of smoke detectors, radon & Co2 detectors, stud finders, telephony toners, both toner and wand. There’s plenty of things out there, just because you don’t use them doesn’t mean someone else doesn’t.

By: Sam

Sam — Sun, 19 Apr 2009 17:52:31 +0000

I own the 500mAh I-Power and they are worth their weight in gold I have had mine for over a year. I use them every day in a portable scale to do inverntory for restaurants 6 days a week and they last about three times as long as a reqular 9-volt and twice as long as a stantard NiMH.
They are expensive at first but they will pay for them selfs. They will hold a charge for months and they charge in 35 mins to 1 hour which is quick for a rechargeable. I speculate they will last as about as long as a computer battery so probable years and they are actually a little lighter than a standerd 9-volt. If you do buy you will be sold on these guys…
P.S. Leave the charge at home I have forgot mine at an account and it was gone the next day.

By: Golden

Golden — Sat, 10 Jan 2009 09:07:05 +0000

I’m Golden from one of the leading battery manufacturers in China.I have read your comments carefully.And I think I should give you a clear answer.
First,about the usage of 9V batteries.You can use them in microphones,smoke detectors,testers,medical machines,etc.
Second,about the compare of Li-po 9v battery and other 9v batteries.Li 9v batteries do have higher energy density,so its capacity is higher than other rechargeable 9v batteries.
Third,about the cycle life.It depends on the charge and discharge methods.The cycle life of li-po and nimh should be almost the same if you use them properly.

If you are interested in discussing about batteries with them,you can add my msn: goldengpb@hotmail.com

I will answer your questions patiently.

By: Justin

Justin — Mon, 29 Dec 2008 19:53:00 +0000

To Power Crazy:

Lithium polymer batteries hold their charge longer than NiMH batteries. Not sure of the exact specs….

Justin

By: Power Crazy

Power Crazy — Sun, 28 Dec 2008 19:53:22 +0000

Do these batteries hold charge well? The smoke alarms in my house use 9V as backup to the mains.

By: johno

johno — Fri, 19 Dec 2008 02:32:11 +0000

and so do many metal detectors

By: Dmon

Dmon — Wed, 17 Dec 2008 05:14:48 +0000

Virtually every electric guitar effects box uses 9v.

By: Furt

Furt — Wed, 17 Dec 2008 00:13:54 +0000

Karl, you’re right. I forgot about all the Fluke DVM’v and cable testers we have. They’re all 9v.

By: Karl O'Melay

Karl O'Melay — Tue, 16 Dec 2008 23:51:24 +0000

most hand held test equipment is 9volt

By: Furt

Furt — Tue, 16 Dec 2008 23:50:18 +0000

I’m thinking about getting these for work (community college). We have 3 wireless mics for our auditorium and almost all of our smoke alarms and other sensors use 9v batteries. Be nice to have a rechargeable that doesn’t drain down when not in use, recharges more times than NiMH, and doesn’t contain any heavy metals.