LP 9V Rechargeable Battery Pack, 2-Pack 800mAh Li-ion 9 Volt USB Battery with Micro USB Charging Port for Alarms, Smoke Detectors, Flashlights, Guitar, Keyboard & More

The return window closed June 1, 2023. I received 2 rechargeable 9 volt batteries. About 2 weeks after they became nonreturnable one of them stopped working, would not hold a charge. I rated this item lower. While I like the Micro USB charging and the cable that came with the batteries, I ended up paying for one battery that actually works and that defeats the purpose I had of always have a battery ready to use. TO THE CREDIT OF THE COMPANY, I have revised my rating now on July 10 2023, after they have offered a refund.

I love these things! 9V batteries always feel like a hassle—either they drain too quickly or sit around too long and die before you use them. These rechargeable ones completely fix that issue. I use them in my smoke detector, carbon monoxide detector, and car remotes, and they work great. They charge fast, have a handy LED indicator to show charging progress, and best of all, they charge via USB—how cool is that?! No more wasting money on disposables. Highly recommend! Nice little case, actually reused for something else and kept it.

I’m a guitarist, and I live and die by 9 volt batteries, especially for my acoustic guitars. Which, I have about 7 that I rotate through with on-board electric that require 9v batteries. These are outstanding, and work for longer than I expected, charge quickly, and for the price, I was impressed. I’m really pleased with this product. I’m sold, and am planning to buy another set for when the batteries I haven’t changed yet run out.

Bought this a few months ago, used them several times, and they haven’t failed me yet. Although I’ve noticed the slight degrade on the the charge time. But still works. I use them for my wireless mics. I’m a dj and my mics are on for about 5-6 hours. Last weeks gig was the first gig that I had to replace the battery in the middle of a gig. Luckily I have a spare. Lol.I will try to discharge them completely and recharge to full. Hopefully that works.

9 V lithium rechargeable batteries Great value for a highly rated battery

The product is good. No doubt about it. However, I just wanted Lithium Batteries. I have a charger. That is why I returned it.

Doesn’t reach 9 volts (only 8.5), but one star is due to all 4 dying after light use for a year. Just stopped recharging. Not worthwhile.

I use 9V’s in several of my electronic tools and this saves me from spending a bunch on new batteries. Plus the capacity is more so they last longer