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  • Tenergy T-9688 Super Universal LCD Battery Charger with USB Port
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Tenergy T-9688 Super Universal LCD Battery Charger with USB Port

by Tenergy
| 5 answered questions

Price: $28.95 & FREE Shipping on orders over $35. Details
In Stock.
Sold by Battery Superstore and Fulfilled by Amazon. Gift-wrap available.
  • Recharges 1 to 4 pieces of AA/AAA/C/D Ni-MH batteries and 1 to 2 pieces of 9V Ni-MH batteries
  • Built-in USB outlet (output: 5V DC 500mA) - recharge and power up your personal digital devices
  • Powered by an external AC adaptor (100-240V AC) for worldwide use
  • Unique designed with blue Electric LCD screen to indicate the battery status: Charge, Discharge, Full, Bad
  • With negative delta V (- ∆V) cut-off function (except for 9V batteries)

Frequently Bought Together

Tenergy T-9688 Super Universal LCD Battery Charger with USB Port + 8 pcs of Premium Tenergy D Size 10,000mAh High Capacity High Rate NiMH Rechargeable Batteries
Price for both: $87.85

Buy the selected items together


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Product Description

Features • Easy to use • Recharges 1 to 4 pieces of AA/AAA/C/D Ni-MH batteries and 1 to 2 pieces of 9V Ni-MH batteries • Recharges batteries in single or group - with 4 individual charging channels for AA/AAA/C/D batteries and 2 individual channels for 9V batteries • Built-in USB outlet (output: 5V DC 500mA) - recharge and power up your personal digital devices (e.g. mobile phones , iPod, MP3/MP4, PDA, portable game devices etc.) • Automatic charge and discharge function • Powered by an external AC adaptor (100-240V AC) for worldwide use • Intelligent microprocessor controlled • Automatic charging current selection for the different size of batteries • Unique designed with blue Electric LCD screen to indicate the battery status: Charge, Discharge, Full, Bad • With backlight button - press it once and the backlight will turn on for 10 seconds under trickle charging mode Safety Features • With negative delta V (- ∆V) cut-off function (except for 9V batteries) • With safety timer control for overcharge protection • With short circuit protection • With non-rechargeable/bad cell detection • With mechanical protection against reverse polarity Charging Time Table Battery type (Ni-MH) Capacity Charging time (approx.) AAA 500-1200mAh 1.5 - 2.5 hours AA 1300-2800mAh 1.5 - 2.5 hours C 1800-4500mAh 1.5 - 4 hours D 1800-9000mAh 1.5 - 7 .5 hours 9V 150-300mAh 5-10hours (by manual) Safety Timer Control Type AAA AA C D 9V - Block Maximum timer Control (approx.) 2.5 hours 2.5 hours 4 hours 7 .5 hours 10 hours Technical Data Input 12V DC 1000mA (use with the suppl ied AC adaptor) Charge current AAA-500mA AA/C/D - 1300mA 9V -30mA USB output 5V DC 500mA Discharge current AA/AAA/C/D - 400mA Detect method Negative delta V (- ∆V) cut-off for AA/AAA/C/D size batteries

Product Details

  • Shipping Weight: 1.3 pounds (View shipping rates and policies)
  • ASIN: B002FKNPBY
  • UPC: 844949001335
  • Item model number: 01127
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (100 customer reviews)
  • Amazon Best Sellers Rank: #23,402 in Health & Personal Care (See Top 100 in Health & Personal Care)
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Customer Questions & Answers

Customer Reviews

The button takes a little fiddling to get the lid to pop open.
P.L.
Charger will show batteries are fully charged but they actually have little to no power in them.
el_duonger
I have tried several different chargers, but this is by far the best.
David Casker

Most Helpful Customer Reviews

80 of 81 people found the following review helpful By Chris Gleba on May 20, 2010
Verified Purchase
Background:

I did a lot of research; I wanted a good nimh charger that can charge multiple battery types and be easy enough for anyone to use.

Pros:

* Clear, easy-to-read display
* Charges quickly and efficiently
* Uses zero power when plugged in but not in use
* Charges 1-4 batteries independently
* Good construction quality
* USB charging!
* The vented transparent battery window is a nice touch.
Some nimh chargers leave the batteries wide open when
charging (although very rare, nimh can still explode) and others
completely cover them in black plastic (can't see!).

Cons:

* I believe I have had one bad cell but the charger continued to try to charge it
for many hours (did not detect it?)
* The power adaptor has a power factor of .56, but it is 12v so easily replaceable
* It would be nice if the unit could charge USB devices at the same time as
batteries. I understand why it does not, though.

Bottom line:

A good product that is definitely worth the money.
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87 of 91 people found the following review helpful By Diveguy on October 7, 2009
Verified Purchase
Received the Tenergy T9688 charger in about a week. Unit was nice looking, with what looks like a better quality AC adapter. I put a battery in the charger my Duracell charger indicated was bad. I set it to discharge and then charge. After ten minutes it was still in the discharge phase, I canceled that mode and set it to charge. At no time did the charger indicate the battery was bad. When I removed the battery, my voltmeter indicated a 1.42 volt charge. I then charged 4 more AA batteries. These charged quickly,(30 minutes)and also were in the 1.42 volt range. The only negative I found was one of the slots has a weak spring to hold the prong against the negative end of the battery. The unit was quick, easy to use and batteries were warm not hot when finished. I also liked having the LCD with barsand words, indicating the status of the batteries, instead of lights that may not truly indicate the state of the batteries.
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54 of 56 people found the following review helpful By Wally on December 30, 2010
Verified Purchase
I was looking for a universal battery charger that recharges not only AA/AAA sizes but also the larger C and D sized batteries. I owned an Energizer Family Charger but became disatisfied because as it has a tendancy to not properly detect batteries. A review of that charger can be found here: Energizer Family Battery Charger

Now, about the Tenergy Universal LCD Battery Charger with USB Port...

After receiving my charger, I charged (didn't use the discharge feature) several AA sized batteries. Of the older batteries, some were detected as bad, but when I used a battery tester, there still was life in them. Out of a dozen relatively new batteries, one battery was detected as bad (when it really wasn't). I find that the bad battery detection process is sometimes inaccurate. It's probably best just to have a battery tester along side to test any "bad" batteries for verfication. For the one battery of the newer group that showed as "bad", I moved to another channel of the charger, then the battery charged up fine. I just hope this situation isn't recurring in which many batteries that still have life in them only get detected as "bad."

Each battery gets charged in it's own channel. That way charging in pairs is not necessary.

The USB port for charging/operating USB devices is a bonus. But I wish the USB port was located in the front or side instead of the back. That would be more convenient. Although I can't recharge batteries and charge via the USB port simultaneously, I still can leave my device (like a phone) plugged into the USB port while charging batteries.
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36 of 38 people found the following review helpful By AGP10 on November 28, 2011
Verified Purchase
I have been looking for a "smart" battery charger for a long time that is priced within my budget. Finally a reasonably priced universal smart charger has been created. This charger is manufactured under several different labels, Tenergy being one of them. The charger has performed great, however it is a little on the finicky side regarding bad cell detection. I started with several different battery sizes, types, and ages. About a third of all the batteries showed up as bad. I ran all the bad batteries through the discharge/recharge cycle and all but the old ones charged up. The old ones took 3 to 4 discharge/recharge cycles to charge up. I discovered that if a battery shows up as bad, doing a partial or full discharge then recharge will generally recover it. I was able to recover all my batteries, some being considered dead for 10 years. Just took patience to cycle the batteries. It's important to note that if the top of a rechargeable battery shows leakage (a powder residue), it has been overcharged to the point of destruction, and should be discarded.

Some of my newer batteries that showed bad were being recharged with a charger that required either two or four batteries. The result was that the old charger was shutting off based on the stronger of the two batteries, thus destroying the weaker one. After some cycling with this new charger, the weaker batteries recovered.

Regarding some previous erroneous posts, the charger will work for both NiMH and NiCd batteries. The manufacturer has confirmed this, and I have successfully recharged both types. The button on the lid works great. One must simply push the button away from the lid when depressing it.

It needs to be noted that most all consumer battery chargers are named "dumb" chargers for a reason.
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