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Tenergy TN141 2 Bay 9V Smart Charger with 4 pcs Centura Low Self-discharge 9V NiMH Rechargeable Batteries
|Price:||$23.39 & FREE Shipping on orders over $35. Details|
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- Worldwide voltage 100V ~ 240VAC
- Automatically detect-Delta V
- Rapid charging. Charge current: 100mA x2
- Advanced Low Self Discharge Ni-MH technology will help maintain its charge after a year when compared to regular NiMH 9V batteries
- Can be recharged for up to 1000 times, providing big savings by replacing hundreds of expensive throw away 9V rectangular size batteries.
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Top Customer Reviews
The packaging and products build quality are first rate, as good as name brands like Energizer or Duracell.
It not only shuts off based on reaching the final voltage, but has a backup timer to prevent overcharging. Out of box, the batteries top up in < 1 hour, and this was confirmed because I did it 4x, one for each battery. On a depleted battery I had at home it was fully charged in under 2 hours. It does not get hot to touch. It works as described with the LED being RED when charging, and turning green when charge completed. The charger is very small and pocket sized.
9V batteries are made of multiple cells in series, it can have 6,7,8 giving a final voltage of 7.5, 8.4 and 9.6Vdc. Cheaper 9V use 6 cells, and the benefit of having more cells is that often devices powered with 9V batteries turn off when it detects low voltage, so more cells mean the battery will last longer in use, even with the same mAH. The end charge voltage of these cells are 9.7V, so one can be sure its anything but a 6 cell 9v.
I was skeptical whether these batteries were truly low self discharge. Its been about 1 mo since I charged 3 tenergy batteries and one new standard NiMH 9V together, and after this time, the standard NiMH has self discharged to 8V while these cells are still 9.7V!
I've been using one of the tenergy in a multimeter, and surprisingly it still reads full after over a month of use. When used with a 6 cell 9v NiMH it will register 50% in 2 weeks.
And the battery quality also good. And it is cheap!
Update; A year later these batteries are still going strong. By now they last for months at a time in my fire detectors. I'm still very pleased.
Most Recent Customer Reviews
For those that play Electric Acoustic guitars, I recommend this product. A slight downside, which is not a huge problem, is that the battery is slightly bigger than regular... Read morePublished 27 days ago by C.S. Park
So far so good, everyone said they would not work in my guitar pedals but they do. My simple volt meter reads 10. Read morePublished 28 days ago by 30 Weight
Tenergy Nickle Metal batteries are by far the best rechargeable batteries I have ever bought. I've had some in storage for a year and they test at 85% of full charge. Read morePublished 29 days ago by Charles Chambers
Batteries melted after only 2 or 3 charge cycles. NiMHs are usually much more robust than this, able to be recharged hundreds of times. Read morePublished 1 month ago by Conway Yen
Using these for active/passive guitars. Work great and I don't have to keep buying new 9V all the time. I don't perform so I can't speak to that. Read morePublished 1 month ago by Nick A
I bought these to use with my office's digital camera. Everything works just fine, and I like that we're minimizing waste.Published 2 months ago by Aileen