Review on 🔋 POWXS Rechargeable 9V Battery and Charger Set – 2 Count NIMH 280mAh 9 Volt Batteries for Smoke Alarms, Guitar, Cameras, Toys & More by Renee Patterson

Bought these batteries and charged them before use. They worked perfectly the first time they were used. The second time you use them, you won't be billed for them! Are the charging lights flashing? UPDATE: Reported the issue to the manufacturer and within 48 hours I had a replacement! The instructions for this charger now state that this device includes voltage regulation which also prevents overcharging. It should be noted that the same instructions also state that the battery should be removed from the device after it has been fully charged, as well as disconnecting the power source from the charger. So this time, I'll stick to those guidelines. I will update this post with the results.