T-868 High Volume Automatic Charger with 16 Tenergy AA 2600mAh NiMH Batteries

by Tenergy

Product Details

• Shipping Weight: 3.5 pounds
• ASIN: B001AYJD8K
• Item model number: 90032
• Average Customer Review: 2.5 out of 5 stars  See all reviews (2 customer reviews)
• Date first available at Amazon.com: June 10, 2008

Product Description

# (Black/Silver color) the color option may vary depending on time of purchase Charger Features * Recharges NiMH/NiCd batteries 2, 4, 6 & 8 pcs of AA, AAA at a time * With battery type selector for NiCd or NiMH batteries * Automatic charging current selection for size AA and AAA * Advance charging circuit with protectionwhen a charging group is mixed with different size of batteries (AA & AAA) * Built-in IC timer control for over-charge protection * Fast charging in the specified period with automatic swtich to trickle charge * LED lamp to indicate proper charging * Charging time: NiCd 5 hours; NiMH 8 hours * Packing: Each in a gift box High Capacity Rechargeable Batteries * High quality AA Size rechargeable Nickel Metal Hydride (Ni-MH) battery, top of line. * Exact replacement for standard AA size battery in all the devices * Provides ultra long use time per charge with this ultra high 2600 mAh capacity * Advanced Ni-MH technology means twice longer use life per charge than the ordinary rechargeables * Designed for enhanced performance for high drain applications such as digital cameras, CD players, portable audio devices, hand held games, 2-way radios, PDAs, and other portable high drain digital electronics * Can be recharged for up to 1000 times, providing big saving by replacing hundreds of throw away AA batteries. * Convenient operation without memory effect. Can be charged anytime. * Can be rapidly charged with any quick charger, smart chargers, plug in charger or universal chargers * Battery tested based on International Electronic Commission (IEC) standard to ensure capacity, quality and life time

Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful:

1.0 out of 5 stars Very poor design, January 5, 2011

By 

Animo (Missouri United States) - See all my reviews

Amazon Verified Purchase

This review is from: T-868 High Volume Automatic Charger with 16 Tenergy AA 2600mAh NiMH Batteries

I've designed battery chargers for several years. Heat kills a battery (NiCD,NiMH,Lead Acid) faster than any other mistreatment. This charger is rated at 1200-1800 mA for AA size NiMH, 500-750mA for AAA. The AA battery sold with it is rated for 2600mA. If the charger switched to trickle after an hour or so, it could be considered a fast charger. Instead, this unit charges for 8 HOURS and heats the batteries >150ºF. But even as a fast charger it would dramatically shorten the life of the battery. The industry standard for rating/charging batteries is 1/10 the amp-hour rating of the cell or less. Above this the life of the cell begins to drop on an exponential curve. Switching the charger to NiCD does not reduce the charge current (AA 600-800mA/AAA 200-300mA) sufficiently and reduces the charge time to 5 hours. The unit also begins to smell within 20 minutes and the case gets warm all over. Whenever a charger gets warm enough to smell, internal transformers are heating up too 100ºC or higher, which can exceed insulation ratings causing failure of the transformer.

On the plus side, these are the first NiMH AA's that have powered my wife's 7MP camera without going dead within 15 minutes. However, some of them were in need of conditioning to get maximum power out of them. So you may need to discharge/recharge/trickle charge them a few times to get them performing. "Sulfation" is a natural chemical process and if the battery is left idle for a while the power capacity begins to drop. The only way to minimize this effect is to have a good charger that trickle charges at the proper cell voltage, keeping the battery in the charger at all times not in use.

The batteries are worth their advertised cost elsewhere, this charger is not (unless you know how to modify the internal electronics). Shop wisely on the charger and these batteries will give good life.

4.0 out of 5 stars A good product, January 21, 2011

By 

kene - See all my reviews

Amazon Verified Purchase

This review is from: T-868 High Volume Automatic Charger with 16 Tenergy AA 2600mAh NiMH Batteries

I am getting a good service from the product. I like how the charger is neat, and also the automatic function. I can put my batteries to charge confidently without worry, knowing that when charging is complete, it shuts off automatically.I would get an average of 3 days service on my grundig radio before the charged batteries are exhausted.Could be slighty longer, depending on how long one plays the radio.
It is truly saving me some dollars.