Delipow 4 Bay Smart Battery Charger for 1.5v Lithium AA AAA with USB Cable ,with 4 count 1.5V 800mAh 1500 Cycle Lithium Rechargeable AAA Batteries

Over the years, I owed over 100 batteries cell of various kind. I still love my 18650 size Li- ion battery best. However, for AAA size, this one is the best I ever have. I owed other AAA size Li- ion batteries too. Those have a Micro-USB Charging port on EACH battery. This one just charge normally, using a 4V specialized charger. I only have these batteries for less than 2 months. I charge up those batteries and install those in a blood pressure meter, which is known to be very picky with battery voltage. I tried other NiMH batteries and always get low voltage warning and failed to work. These batteries have been working for over 6 weeks already. Once those batteries are fully drained, I will perform a battery capacity test and update this review.

Worst battery purchase I have ever made! I purchased the AAA and AA combos with charger. Let’s start with the chargers, on one charger the contacts for the AAA are broken (this is the charger that came with the AAA). I thought well at least both chargers are set up to charger the AA/AAA and yes they are but on the working charger only the first and third contact are connected to the board (AAA) the four for the AA work fine I guess. As for the batteries themselves, to use the word longevity would be a crime. After a “full” charge the AAA will power a 300 lumen LED head lamp for about 30 minutes, your cheapo dollar store batteries will power the same headlamp for almost 4 weeks being used for approximately 1.5 hour a day 7 days a week. I use this lamp as a light for my 13 year old German Shepherd as she is starting to have trouble seeing in the dark. Keeping a charge for more than about a day and a half also seems to be impossible, anything longer than about 12-15 hours after being charged the battery life drops dramatically. I would not recommend purchasing these batteries unless you just feel like being disappointed and wasting money.

The chargers amount to about a buck - given the price difference between "just the batteries" and "batteries with a charger". How wasteful when they arrive broken and there's no convenient way to get them replaced (much less fixed). I think the batteries are great - they're a tiny bit longer than a Duracell AAA, and thus "stress" the prongs of your device, but that's not the real issue. The issue is that for a dollar's difference, when two chargers show up with 2/4 broken "+" prongs each...there's no practical way to remediate through Amazon. It's not worth my time to ship the (full set) batteries back, since I've now got three chargers and working batteries (plus more microUSB cables than I need) - the 1st charger I got with another purchase and everything worked great - the 2nd and 3rd chargers had 2/4 prongs broken. So in order to charge 12+ batteries I've got to cycle them - which halfway defeats the purpose of having the 2nd and 3rd charger. Annoying. Let's not forget that while we're trying to reuse batteries so as not to waste as often - there's waste created by shipping, but moreover there's (inherent, built-in, too "small" to care about) waste with cheap manufacturing. Disappointed in that fact. Manufacturing at such enormous (and unaccountable) scale is out of hand. I'd rather pay for quality than write this conflicting BS review which, in the end, is used to sell more crap. If you're going to get these - it's worth the extra few bucks to order a charger with each set of 4 batteries you order - since manufacturing chargers is junk status. Here I go perpetuating waste to save more waste. Beyond that the batteries seem to work great (not sure on longevity) with headlamps and trail cams, even in the cold. Very happy IF they work for the long haul. Ultimately happy with or without Deleepow - so that sheds light on their true value - remember that. Rechargeable headlamps in particular I've found to be made cheaply - even by Black Diamond - so you're better off with Deleepow batteries (IF you get working chargers). Enjoy.

Love, Love, Love! This is what rechargeable batteries are supposed to be like! They are 1.5V, have a high capacity and discharge rate, and charge fully in under an hour! I've bought two sets of four, and bought a set of four of another brand, with a charger. Can not say enough about how much I love these batteries!

This is an ingenious invention for my gaming contollers. The batteries arrived fully charged. They are very easy to recharge through any USB slot. They are lightweight and work with all devices alkaline batteries work with. These are perfect for gamers who need charged batteries on hand!

Of the 4 batteries purchased, 1 battery failed to take a charge after 1 use. The other 3 batteries seem to be working properly. After my previous review, I was contacted by the seller and they replaced the product.

Battery charger is broken so it was sent bad .

One of the batteries went bad after only 4 recharges. Part of the outer jacket melted off, it will not take a charge, and shows no voltage on the tester. However the rest are still going strong. I use these lithium rechargeable batteries in my SpO2 tester and also in the drip water timer. The remaining batteries are dependable.