2 Packs Rechargeable 9V Batteries 650mAh, 9 Volt USB Charging Batteries for Smoke Alarms, Multimeters, Microphones, Walkie-Talkie and Toys

Saves me money on batteries. Good battery.

I purchased these for a microphone at church.We've been using another brand that's 600mAh. Those show 2 bars, and then after a little use immediately go to 1 bar. This tends to make folks nervous with only 1 of 3 bars left. Now, we've tested these at 1 bar, and they last 4 hours, which is plenty of time. Our services don't go more than 2 1/2 hours. Again, we want our folks to have confidence.Enter REACELL, and as seen in the pictures I'm getting 3 bars out the gate! Love it.I also like that these recharge with a USB-C connector. Cable included ... charge both at the same time.Once charged the light changes from red to green. A nice visual indicator. You can check the charge as well using a meter, if you have one handy.I imagine that these would work well for smoke detectors as well, although I haven't tested (yet). I will be as I have (5) in my home. As these are slightly more than the cost of (3) 9V Alkaline batteries, it makes sense to go long-term, and purchase rechargeable batteries. Not sure if they'll last the year? Set a reminder to charge every 6 months.

I’ve been using them for about 8 months in my wireless mic for gigs. I liked them so much, I ordered two more for other band equipment use.4 stars since they don’t provide a charging cord.

The 9v battery has excellent performance and quality. Battery charges quickly to full charge of 8.3v. A full charge is 8.2 to 8.4 as stated by the seller. I use them to power my active pickups in my guitar. Got tired of burning through 9v batteries every month and thought I’d try the rechargeable. So glad I did! After 30 hours of playing the battery is still holding at 8.1v (picture) down from the full charge of 8.3v I’m very impressed since the Energizer Max batteries I previously used drained much faster. I saw another review state that the battery does not fit in the guitar battery compartment. This was not an issue for me. The battery fits perfectly with room to spare (picture). I would highly recommend these batteries and look forward to not buying anymore disposable batteries ever again. I’m more than satisfied.

Able to charge via USB-C or traditional charger. I was able to get 8.1 out of charger, but improved to 8.4 via USB. I use these a lot for guitar pedals and tuners. 9 volt Duracell and Eveready are getting to be costly.

Would buy again

I assumed these could replace alkaline 9 v batteries but no. They have around 1.2 volts not the expected 1.5 volts.

At a full charge these last about 2 weeks. That's without use. Charge them overnight, put them in a box and 2 weeks later their dead.

Fait le boulot.

Ottimo prodotto! ConsigliatoVenditore molto disponibile

Ich verwende diese Akkus in meinen Rauchmeldern inzwischen seit 4 Monaten, bislang ohne Probleme. Sie halten die Ladung sehr lange, bislang war noch kein nachladen notwendig. Von daher von mir eine Empfehlung für alle, die gerne wegkommen möchten von den Wegwerfbatterien. Über die Langlebigkeit kann ich jetzt noch nichts sagen.

Permite recargar la batería sin tenerla que extraer del equipo. Excelente.

zeer snelle levering snel op geladen