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

I am SO happy with this small pocket charger. Very sleek, well made and easy to set up. I had ordered another by mistake and the company kindly took it back and I ordered the correct one. There are two available, so, if you have p312, this is the one. The original rechargables are still available from Germany, but the tariff doubled the cost. This pocket charger is the way to go. Great company to do business with

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.

The charger is okay it is the length of time the batteries will hold a charge that I didn't like.

DO NOT BUY If I could give zero stars I would. Quality is cheap & combined with poor instructions it it is junk Never worked from the moment I plugged it in. Gave it one more shot a few nights ago and it suddenly seemed to be working. Waited the 2+ hours then tried the batteries. Nothing. Dead. Put another pair in and the device would even display the status led. Save you money. I'm lucky in that I bought when it was only $30 or so.

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.

I seldom write reviews, but after initially thinking that I'd return this item I've found it to be a great device. As made clear by the manufacturer, the life of battery charge will vary with hearing aids. Mine have bluetooth functionality and consume batteries faster than others. I go through 312 Zinc Air batteries every 3 days. The Power One 312 batteries don't make it through the day. If I insert new batteries in the morning (6 or 7am), they're done about 5pm. I thought that this was a non-starter for me after the first day and switched back to the zinc air. However, after a week and 6 batteries I decided to try making a change in my personal routine. Now, I insert fresh batteries in the morning. Some time after mid-day, I make it a habit to swap out the batteries, which is easy because this pocket charger goes everywhere with ease and recharges quickly. So, with one change to my daily routine I've gone 3 weeks and haven't used a single zinc air battery yet. Once or twice I forgot and the batteries ran out. Fortunately, these batteries discharge differently than zinc air and provide me with at least a half hour advance notice when I receive the first "low battery" warning in my hearing aids. This is very different than the one minute warning with my zinc air batteries. So when I get the warning on PowerOne batteries, I can easily make time to swap them out before losing power. I'm glad that I gave these a second chance! Highly recommended.

My hearing aids require a P10 battery, 1 per HA (I call mine "Earwigs.) I bought the Power One pocket charger and 4 rechargeable batteries. ,The advertising on the package says "fast charging in 2.5 hours"., more like 8-10 hours, even with high power 4 Amp supply. The cord for use with the Power One adapter is not designed to last should the user move the PocketCharger often. The idea would work if all you did was never moved the charger or cord. The charge port on the portable portion of the charger is connected by a connector that could easily become problematic. The odds are, even if inserted correctly, the pin in the portable portion of the charger you could bend the needle inside the connection port and intermittent connections would frustrate the user. I measured the NiMH batteries after having been charged overnight > 10 hours, voltage was 1.35 VDC on 1st set of batteries (I bought 2 sets). At $20 per set, I figured the Powerone engineers thought about long time use. I was wrong, longest time in nearest hour of operation, 6 hours on one earwig, the other 7 hours. 2nd pair didn’t even get fully charged. I would have to have at least 8 chargers and 6 pairs of rechargeable batteries, 2 ea for office, home, car, battery room. Now before anyone gets PO’d, my background is Electronic Engineering, the following statement is just a basic battery growth and activating the Zinc-Air battery. As described by Bloom (2003), “the tiny button cells (Zinc-Air) used in contemporary hearing instruments typically have double the life of the old mercury cells and three times that of silver oxide” and they are “small, lightweight, and leak resistant, offering large capacity, stable voltage, and start-up on demand.” Now that’s good but not quite true for ZINC-AIR batteries. I’m a user, heavy user, 12 hours per day and longer in many instances. I have tried many of the USA accessible Zinc-Air batteries, I’ve settled on Powerone P10 cell for my earwigs. Powerone has quirks too! After you buy them and you need to change your earwigs battery, with the first warning 1st, 2nd, 3rd that the batteries are getting low and need to be changed, in my case I get 3 warnings to change the batteries. Now use common sense, DON’T TRY TO CHANGE BATTERIES WHERE YOU CAN GET INJURED OR WORSE KILL SOMEONE ELSE/ EXAMPLE: WHILE DRIVING! Should you decide to do that, the odds are against you and you are a GENUINE “Darwin Candidate”! So with the warning to change batteries, I usually go to a McDonalds get a hamburger, Coke and NO FRIES! Find a parking spot and take the label off the Zinc-Air batteries set them down and enjoy my Coke and burger. (I change both at the same time, why? I found out my right earwig uses less power than the left ear by about 4 hours. Thus if I have to, I can drive with only one earwig for approximately 2 to 4 hour or the nearest McD’s or stopping point other than the side of the road.) Let the cell sit for a minimum of 5 minutes and 10 maximum after tab removal. This will achieve full activation of the cell. The Label on the + side is covering a microscopic hole on the battery to keep the cell from activation! Zinc-Air cells work on oxygen to activate with a chemical to make electricity to run the earwig. Should you not do this, you can lose up to 30% operational time. And, NO you cannot remove the tab for 5-10 minutes and then put it back on the cell to use later. Chemical reaction once started cannot be stopped. Bottom line, I WOULD NOT RECOMMEND the Powerone pocketcharger or Powerone RECHARGEABLE BATTERIES FOR ANYONE! I personally like to have to change batteries only every 4 days rather than twice a day.

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.