Tenergy TN160 12-Bay Smart Battery Charger for AA/AAA NiMH/NiCd Rechargeable Batteries with Refresh Function

Note: Charger was used with AmazonBasics AA NiMH Precharged Rechargeable Batteries-8-Pack, 2000 mAhI purchased this product because my battery costs were out of control in supplying 4 Nikon Speedlights with AA battery power, easily exceeding $30 a month. After much research, I narrowed my selection down to this product and the 16 Slot Titanium AAAAA Fast Battery Charger with LCD Display. However, the latter was out of stock when I went to purchase and thus defaulted to my #2 selection, the Tenergy.The charger comes packaged in a blister pack that has to be cut away. That is the only fault I can find with this charger. The charger is very well built with decent weight to it. Both build quality and materials are very good. Instructions are a little on the light side, but no big deal. The design is simple, which is a major selling point to me. Being able to charge 12 batteries makes my life easier (the Titanium charger can do 16). The charger can easily be transported onsite and will fit in most camera bags and easily into luggage. Despite the 12 battery design, it does not take up much space.I immediately loaded up the charger with 12 AmazonBasics AA NiMH Precharged Rechargeable Batteries-8-Pack, 2000 mAh. The charger took about 3 seconds to read each battery and display current state status. It then began charging them simultaneously, taking about 4 hours to bring them all up to full charge. Batteries that were in process of being charged became a little warm (in no way hot) during charge cycle. Once fully charged, I could not detect any heat and the charged batteries were cold to the touch even though they continued to receive a trickle charge to maintain the charged state. The display continuously displays battery status. The digital display is very bright (blue), but easy to read.Charge time rates from package:700mAh AAA 1.8 hours900mAh AAA 2.3 hours1500mAh AA 3.9 hours1600mAh AA 4.2 hours1800mAh AA 4.6 hours2000mAh AA 5.2 hours2300mAh AA 6.0 hoursIn summation, I am very impressed with this product, especially at the price. I was prepared to spend twice the amount. Apparently, I did not need to. As a side note, I ordered another charger.TIP: I recommend you number or letter your batteries in groups if using them in pairs, especially for photographers using flash. This will allow better battery management and pairing. Also, the batteries should arrive at end of life cycle more or less at the same time- avoiding mixing new batteries and old.

Is good item. Charging the battery fast and no problem until right now.

First, I purchased this charger almost a year ago, which came with 12 AA Tenergy batteries. I added 12 AAA Tenergy batteries. I've been very pleased with how it works. The batteries charge reasonably fast, even if you are charging all 12 at the same time. I was a little surprised that the directions recommend taking out the batteries after they are finished charging. So, this charger does not do a trickle charge like some other, much more expensive chargers, do. I use the batteries in a lot of items around the house and I feel their longevity in those items is very good! I do like having a refresh button, although this function takes quite awhile to discharge and then recharge the batteries.I recently found that one of the islots was defective. I contacted Tenergy and after being asked some questions for clarification of the defect, Tenergy's customer service sent me a replacement charger priority mail without hesitation.I can definitely recommend the charger and their batteries. I would like to see a charger available from Tenergy that also has a slot for recharging at least one 9 volt battery, which they do sell, and I have used in the past in my sprinkler system control box (which provides a trickle charge).

I got alot of devices that use AA batteries and I got tired spending money on batteries so I went with these rechargeable batteries and charger. Overall I like the idea of reusing batteries instead of throwing away old alkaline ones and buying new. These have definately saved me money. On a full charge these seem to last as long as a normal battery, charging doesn't take long and I love the display on the charger but when fully charged and stored for a long period of time it seems like the batteries don't hold a full charge. I usually have to put them back into the charger for a little while to get them fully charged again. Not sure if it's just these batteries or if this is just how all rechargeable batteries are. Other than that I still have saved money with these so that makes me happy

I haven't had this charger for very long, but I am very much a fan of it so far. Being able to charge 12 batteries at once is a good thing, and the fact that you don't have to worry about keeping batteries in pairs is a good thing, too, as we all have a gadget or two that takes one or three batteries. When the charger is in full swing, an electronic noise can be heard, that almost sounds like it pumping. The batteries heat up when charged, which I'm told is not really ideal, but so far I've had no problems. One thing worth noting is that the blue display is *BRIGHT*. Like, if you leave this in a room charging some batteries and go outside at night, people will walk by and wonder why you have a blue room. It's kind of weird, but again... charging 12 batteries at once is much nicer than waiting for individual chargers to become available, so hey... no complaints.UPDATE: So the other day, I got home from a shoot and noticed that four of the batteries wouldn't charge. I put them in and they didn't show up as charging on the LCD display. I figured that those slots had died, but as it turns out, those batteries weren't showing up in ANY of the slots. I stuck them into a regular 4-AA/AAA charger for a few minutes, then put them back in and wouldn't you know it... they started charging. I don't know if they were run down too far to recharge in this charger, but since then, it has happened a few more times with some other batteries. It's nice that it's such an easy fix, but... it kinda sucks that I have to double-check before walking away now. I hope this update helps someone out there.

I know this company's Rechargeable batteries are junk.