Power One Pocket charger for ACCU Plus Size p10, p13, p312 (Capacity - 2 Batteries)

This is a very handy charger that allows me to use only 2 sets of rechargeable batteries to power my hearing aids. The charger has it's own internal battery which allows you to charge two batteries when you are not near a power source. That said, the charger itself uses a usb plug for its power, so any computer or power brick that you have can serve as the main power source for the charger. The charger does come with a transformer that provides 1 usb port. When the charger is plugged in it will charge the onboard battery and 2 hearing aid batteries at the same time. Separate status lights provide individual status regarding the ongoing charge for the main battery and each of the hearing aid batteries.My hearing aids use 312 type batteries, which can reportedly be charged 1000 times each. Using throw away batteries I get about 3 days use. Whereas my rechargeables will on average last me 1 full day; occasionally if the environment is really working the hearing aids the batteries will give out an hour or so earlier. I just put the depleted batteries in the charger and drop the spare pair in.The charger is "smart", and will analyze the charge state of the batteries and determine the best charging strategy that should be used for each battery. It will top off a cell that only needs to be topped off, and will fully discharge batteries that are mostly discharged. Fully discharged batteries start charging right away.I do have some difficulty getting my hearing aids to start, sometimes when using the rechargable batteries, and this might be frustrating for some. The cause of the difficulty isnt clear, but gently squeezing the battery door for a few seconds gets the units to start. Speculation is that the batteries are either a slightly smaller diameter, or are unable to consistently provide initial surge-level voltages during the aid's power-up. Sometimes if the aids are jostled they will reboot. This appears to be an issue involving my particular hearing aids and the brand of batteries (Forza/OnePower) and is not an issue of the charger.

This item is complete garbage. We've tried multiple different batteries and it only holds a charge for 8 hours, which is worthless when wearing hearing aids.

My wife bought a set of Kirkland hearing aids a couple of years ago, and her set came with a charger. I just bought the latest set of Kirkland hearing aids and they do not come with one. I prefer to use rechargeable batteries, like she does. Before I bought my aids, I researched the web to see if anyone had a separate charger available for hearing aid batteries, and voila! The Power One Pocketcharger fits the bill. It is small enough for me to fit in a shirt pocket, and itself has a "slab"-type battery that will give up to six or so charges "in the field." It also comes with battery holders for three different sizes of batteries: #10, #13 and #312. I use the latter.It also comes with an a/c adapter that allows the unit itself to be charged. The adapter has a removable "wall wart" to allow charging by a USB port. I have two sets of rechargeable batteries. When I have one set in my hearing aids, the other is in the Pocketcharger. If I go out and am not sure what charge level is in the batteries in my aids, I have the second set in the Pocketcharger and at the ready to swap out.Is it inexpensive? No. Rechargeable batteries are about $26 a pair and the Pocketcharger is $96.90 at Varta, but to me was well worth it. Keeps the zinc air batteries out of the landfill (not that I would toss them, but if on a trip would have to keep them and take home for recycling).The unit also is a "smart" charger. It senses each battery's charge level and will quick-discharge them before recharging. Recharging a pair of batteries takes a couple of hours.Obviously, I can buy a boatload of "disposable" batteries at Costco for what I paid for this Pocketcharger and two sets of rechargeable batteries, but I went this route for my convenience. I highly recommend this charger.

I liker the whole idea of using rechargeable heavy aid batteries! The only thing worse than needing hearing aids is using disposibIe batteries to make them work! Every time l needed to replace my batteries (every 3 days!) I would jet sick knowing that I was contributing to over environmental problems by having the used battues go to landfills and contaminating the soil and ground water with ten toxins they contain.This product, along with the batteries it recharges allows me to decrease my environmental footprint, and save me many at the same time! We've already given up our car (which Portland's tremendous mass transit system made possible. Thanks, Portland!) So this product along with rechargeable batteries (also available from Audiometrics) makes me feel more internally consistent!Adiometrics is an attentive supplier that follows up on orders until the customer is satisfied! (Thanks, Stacy!)

I was extremely disappointed due to the short time the rechargeable batteries ran my hearing aids. The ones that were throwaway 312 batteries lasted more than a week at 10 hours per day minimum. The rechargeable Power One batteries last less than 7 hours in the same hearing aids. I bought three sets of 2 rechargeable batteries and the charger. I have Tweak Hearing Aids. The only advantage is that I will not have to buy throwaway batteries any longer (until the rechargeable ones fail). The charger seems to work as advertised, but have not tried charging with the onboard battery as I always leave the charger plugged in. I have not tried to find out how many batteries I would have been able to buy for the price of the charger and how many months they would have lasted versus buying the charger and the rechargeable batteries. Perhaps another time when I have a few minutes.