They say that necessity is the mother of all invention. All I can say is that for the last few years I have been talking with battery charger manufacturers about the need for a higher capacity 9V Battery charger that could handle multiple chemistries – both NiMH and Li-Ion rechargeable batteries.
Finally somebody listened. The Tenergy Corp has just introduced an inexpensive, 6-bay 9V battery charger that will handle both NiMH and Li-Ion cells. We had the opportunity to perform a “hands-on” product review of the Tenergy TN346 battery charger and see how it stood up to the charging of Ansmann NiMH 9V cells as well as HiTech and Tenergy Li-Ion Cells. Take a few minutes to watch the product review.
We found the charger to perform well with both chemistries. The Ansmann NiMh’s charged up to capacity on the first charge. Both the HiTech and Tenergy Li-Ion’s required 2 or 3 intital charge cycles to bring them up to full capacity. (This is typical of new batteries, particularly Li-Ion chemistry)
As to the batteries, the “new kid on the block” the Tenergy li-Ion 9V, (rated at 500 mah,) we found the true capacity to be closer to 350 mah (it’s stated minimum capacity.)
The best feature of the this new charger is when you have different devices that require a variety of run-times. You can opt for the higher capacity 9V’s in Li-Ion and still use it to charge the NiMH cells of lower capacity.
An example of this would be wireless mics or in-ear monitors. Suppose you have a few units that are real power hungry and require runtimes in excess of 4 hours. You could use a Li-Ion battery and get up to 15 hours and still use the NiMH cells for your shorter run time devices. NiMH have higher recycles value than Li-Ions so you can still get the most mileage from them and use the high capacity Li-ions for your longer run-times – without the need for separate chargers — and the possibility of charging the wrong cells in the wrong charger.
Tags: 9v battery charger, ansmann, hitech, horizonbattery, rechargeable batteries, tenergy, tn346





I really enjoyed this video. I don’t have a need for 9 volt rechargeable batteries, but I do have a great need for AA batteries. I just wish (recommend) that the site personnel would publish more video which demonstrate the actual products the same way this video displayed the 9 volt battery recharger. This actually helps buyers like me to make a purchase because seeing the actual product gives me a sense of buying confidence.
I have a clock radio that runs on 8 “C size batteries so I was thinking of getting some of the rechargeable ones because in the long run we would be ahead anyway on cost. How long is the life of a “C sized battery when it is running all the time? Thank you for showing us this 9 volt charge as well that is going to be a huge help.
I have rechargeable batteries for almost everything in the house except major appliances and things that really are important. I just recently ran some batteries completely dead before charging them and now they only hold like half as much as they used to. Do I need to get new batteries or a new charger?
Rechargeable batteries are the thing of the future and present. These things have been growing by leaps and bounds and it never amazes me the changes they make to them because the technology for them is just amazing and it continues to grow. Thank you for the article it was full of information and I appreciate the information.
Apple has applied for two hydrogen fuel cell patents. Citing consumer awareness about fossil fuel’s environmental and political impact, the move indicates the company has been looking into a new system to recharge their portable device batteries for over a year. I wonder what this means and what they are up to for the future. I could conjure up some wild, sinister theories, but I will refrain from my conspiracy theories and instead, ask the readers.
What does Apple applying for a Hydrogen Fuel Cell patent have to do with rechargeable batteries I mean if it does have something to do with it then I am like Misty in wondering what they are up to. Thank you Misty for posting your comment and concerns I hope that someone will tell us the scoop soon.