****** - Verified Buyer
4.5
I use these in my HP Reverb G2 VR Headset, which eats batteries for breakfast, Lunch and dinner. These rechargeable batteries outlast the Duracells I normally use. I highly recommend and purchased another set so my gaming is rarely interrupted.These do take longer to charge and run 1.6v, so make sure your device can handle them.The batteries work well, they last a long time and the high voltage they have helps a lot in the performance of my nephew's nerf gun. But I didn't like the charger at all, it has a very dim light and you don't know when your batteries are fully charged, so I took away a star.BOught it for my WMR lenovo explorer controllers.I had 2 sets of 1.2 rech batteries, and it's known that WMR shows issues with those voltages. NOw, these batteries are1.6 which are more than enough. Ive played 3 hours straight, and the level is still 60%. After 3 or 4 days without playing, check batteries in game, and still same perecentage.Some ppl complain about the Charger. Let me tell you. This is good. You need to get used to it.The red light is bright whenb you set batteries without charge or low charge. After a few minutes, the light (dimms) a bit, so that indicates that the batteries are getting charged. After 1 hour or so, the light is more and more weak. but is not that the charger is wrong, just the way they made it.Good purchase!PS. Sorry bad english!I researched years ago when I first bought my blink and it told me to only use duracell optimum or energizerlithium. I did ALOT of research and even said forget it ill try my chances. I bought these 1.6v nizn rechargeable and they are the best for blink cameras! Set your calender I live in Michigan when it's cold they last 2 1/2 weeks of charge when it warm out you can make it almost 4 weeks! Haven't had any problems using the new wireless blink cams for 2021Batteries work fine and recharge quickly. The batteries are specified by energy content (milliwatt hours) instead of milliamp hours which is a more familiar specification for NiCad or NiMH. No doubt this was done intentionally to sucker the unsuspecting buyer. If one divides the milliwatt hours by the nominal battery voltage, one discovers that they don't hold has much charge as either NiCad or NiMH. If the Ni-Zn batteries were proportionally less costly compared to NiMH, then the case can be made they are a good deal, but that is not the case. For the money NiMH is a better value. The slightly higher voltage of the Ni-Zn might be an advantage for some applications.It is too early to rate either the longevity or battery life...more time is needed.Product arrived with one of the four batteries unable to hold a charge. I bought this product to use with a Samsung Odyssey Plus VR headset. I have not been able to test it in my application since I need all four batteries. I will contact the manufacturer to see if they can replace the defective battery. Three of the batteries charged to 1.837 volts and were able to hold the charge. When I checked them the next day they were still over 1.8 volts. The defective battery self discharged to under 1.4 volts. I recharged the cell to 1.8 volts, but it started to drop in voltage immediately.Update 7/1/2019:I contacted Amazon Product Support regarding the defective cell on 6/13 using the chat option. I was connected to a Product Support representative almost immediately. After explaining the problem and verifying my order information they offered to replace the defective cell. Since only a four pack was available, Amazon provided a gift card refund in the amount of a four cell pack. It was credited to my account within a few hours. I used it to order four more cells. They arrived an a few days. All of them worked well.I have been using the batteries in my Samsung Odyssey Plus controllers for at least 15 hours total and they are still reading 17 volts, down from 18.37 volts fully charged. I am a very light user, so they may not last as long under heavier use. By comparison, the NiMH 2500mAH cells I was using needed to be recharged after every 3 hours of use or I would get a low voltage warning and lose tracking. So far, these batteries are more than five times better and still going. I am expecting they will work another 15 hours before I will need to recharge them.Currently just got the item, Still digging about. But wanted to give first thoughts/overview to it as some mistakens are not seem to mention.Firstly lets start out. This is a LIGHT charger, Super light.Specs of the charge itself are.Class 2 Battery ChargerModel: PK-8186Input 100-240v - 50/60hz 6wattsOutput: AA 3.2Vx1 - 300maOutput: AA 3.2Vx2 - 300maOutput: AAA 3.2vx1 - 100maOnly for AA/AAA NiZn batteries | Charges only 2 or 4 AA or 2 AAA'sNow my best guess is the '300ma' is split so your really getting 150 for each cell. And if 150ma is for 1hour of charge, this would take about 13hours to get a full dead NiZn battery to full. Now if it's really 300mah for both cells, that's half the time. But the big kicker here. Is no specifics are mentioned of the LED's turning off to show it's done charging. Or how long the time is for them to be 'charged' in time. But on PKcells website, Mentions the LED's do not turn off when full, so keep track of time base? So leaving these in is a risk like olden day NiCd rechargeable rc cars had? Where you have to watch for 4hours of your charger, or risk over charging them? Seems odd for a product that's modern day or atleast 2009+.I'ma do some more testing and find the exact details and update the info with more tech info later on. But for now this is what i'm getting on first look. I'll be draining these batteries fully, then leave them to charge for almost a day to see if they truly do have the LED's turn off, or it's based on time. If they don't turn off within 15hours. Then i'm betting it's timer based, As these NiZn batteries are only rated at 2500milla watt hours. vs Milla amp hours. in Mah their really only around 1800mah. Still pretty good, Better then AA Lithium 1.5cells. But no where near the power life of a NiMh cell or rechargeable alkaline 1.5cell.When shown 8 batteries you only receive 4 misrepresenting the add
