T-868 High Volume Automatic Charger with 16 pcs Tenergy Centura Low Self Discharge AA 2000mAh Rechargeable Batteries, 4AA Card x4 ---NEW!

by Tenergy

Product Details

• Shipping Weight: 4 pounds
• ASIN: B001LGKOIA
• Item model number: 90036
• Average Customer Review: 2.0 out of 5 stars  See all reviews (2 customer reviews)
• Date first available at Amazon.com: November 18, 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 Advanced charging circuit with protection when 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 Battery Specifications Exact replacement for standard AA size battery in all the devices Provides ultra long use time per charge with this ultra high 2000 mAh capacity Advanced NiMH technology means twice as long use life per charge than the ordinary rechargeables combines all the features of the alkaline battery (Ready to Use) with the benefits of rechargeable battery Very slow self discharge maintains 85% residual capacity after 1 year of storage and 70% residual capacity after 2 years of storage Designed for enhanced performance for high drain applications such as digital cameras, CD players, portable audio devices, hand held games, 2way 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 Dimension: 18mm(H)x50mm(D) Weight per cell 0.06 lbs Battery tested based on International Electronic Commission (IEC) standard to ensure capacity, quality and life time ##The batteries are only charged to 1/2 capacity due to the postal regulation for shipment safety. Please fully charge the batteries one time before using. ##

Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful:

2.0 out of 5 stars Good batteries, bad timer-based dumb charger, July 24, 2011

By 

NLee the Engineer (Nashua, NH) - See all my reviews
(HALL OF FAME REVIEWER)    (TOP 10 REVIEWER)   

This review is from: T-868 High Volume Automatic Charger with 16 pcs Tenergy Centura Low Self Discharge AA 2000mAh Rechargeable Batteries, 4AA Card x4 ---NEW!

The batteries in this package ("T-868 High Volume Automatic Charger with 16 pcs Tenergy Centura Low Self Discharge AA 2000mAh Rechargeable Batteries") are of decent quality. I have tested those previously (see my review of Tenergy Centura AA for details), and found them to have similar capacity as the better-known Sanyo Eneloop AA Pre-Charged Rechargeable Batteries. But Tenergy Centura cell are available at much lower cost, making them a good low-cost alternative for non-critical applications such as children's toys.

The charger in this package, however, is a piece of junk because:

1. It charges in pairs only. That is, either 2, 4, 6 or 8 cells at once. This is very inconvenient if you have appliances that require odd number of cells, such as LED flashlights. Inevitably, you'll mix up one completely drained cell with one full (or partially drained) cell in a pair. Charging them together will cause the latter cell to be over-charged, which is very bad for battery lifespan in the long run.

2. It is a Timer-Based dumb charger. It simply charges all your batteries at a small current (250mA for AA, 100mA for AAA) for a fixed time (8 hours), regardless of the actual battery status and capacity of each cell. For 2000mAh AA cells this time is just enough, because 250mA * 8 hour = 2000mAh. But you have to make sure that your batteries are fully drained before recharging them, otherwise they will be over-charged. Batteries with higher capacity (such as 2700mAh) cannot be fully charged in one session. You need to manually start the second session, but remember to terminate it before over-charging occurs.

3. Every time you want to start a new charging session, you have to unplug and then plug in the charger, in order to reset the 8-hour timer. If you have the charger plugged in and the power was interrupted briefly, the timer gets reset and it starts another 8-hour charging session. This again results in over-charging of your batteries.

My recommendation is to skip this T-868 dumb charger, and look for a 'smart' charger such as the Sony Cycle Energy BCG34HRE4KN Quick with Refresh Charger. The BCG34HRE is a much better design because it charges each cell independently. It monitors the voltage of each cell during charging and stops when each cell is full, so cells will not be over-charged. Its charging current is also higher, so you can recharge 1-4 AA cells in just 4 hours, instead of having to wait for 8 hours as in the case of T-868.

2.0 out of 5 stars (were) Great batteries..., January 13, 2009

By 

Sean D. Reeves - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: T-868 High Volume Automatic Charger with 16 pcs Tenergy Centura Low Self Discharge AA 2000mAh Rechargeable Batteries, 4AA Card x4 ---NEW!

EDITED REVIEW:

These batteries did not last long. Unfortunately, I failed to update my review and hope I didn't lead any of you astray. The batteries worked as advertised for about 6 months, after which time they began holding less of a charge. Before we finally tossed them in the garbage, they would charge for 30 minutes and last less than 5 in a toy. I strongly recommend that you cough up a bit more money and buy a name-brand set of rechargeables.

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OLD REVIEW:

Everything they claim is true. They're rechargeable and are perfect for families with kids.

Also, the 10-pc. charger is perfect for getting a large number charged simultaneously.