![12V battery reads 4V, any tips on how to revive it? I got a 6V/12V F-705 Ferve charger at hand : r/batteries 12V battery reads 4V, any tips on how to revive it? I got a 6V/12V F-705 Ferve charger at hand : r/batteries](https://i.redd.it/1svomz7k1gf51.jpg)
12V battery reads 4V, any tips on how to revive it? I got a 6V/12V F-705 Ferve charger at hand : r/batteries
![MIGHTY MAX BATTERY ML-AC612 6V/12V Charger for 6V 4.5AH CSB CP640 Battery MAX3497483 - The Home Depot MIGHTY MAX BATTERY ML-AC612 6V/12V Charger for 6V 4.5AH CSB CP640 Battery MAX3497483 - The Home Depot](https://images.thdstatic.com/productImages/552a73b6-68b1-4aa0-b1ea-8a3b3caf1703/svn/mighty-max-battery-12v-batteries-max3497483-64_600.jpg)
MIGHTY MAX BATTERY ML-AC612 6V/12V Charger for 6V 4.5AH CSB CP640 Battery MAX3497483 - The Home Depot
![Amazon.com: Energizer 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, 7 Step Smart Charging Technology : Automotive Amazon.com: Energizer 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, 7 Step Smart Charging Technology : Automotive](https://m.media-amazon.com/images/I/71Ic9dDERwL.jpg)
Amazon.com: Energizer 2-Amp Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, Trickle Charger, 7 Step Smart Charging Technology : Automotive
![RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt batteries together? - RV Travel RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt batteries together? - RV Travel](https://www.rvtravel.com/wp-content/uploads/2020/01/6-and-12-volt-battery-hookup.jpg)
RV Electricity – Just Ask Mike (J.A.M.): Can I connect 6- and 12-volt batteries together? - RV Travel
![Amazon.com: Battery Charger Automatic 6V 12V 1.5A, Trickle Charger Suitable for AGM Gel SLA VRLA Flood Lead-Acid Batteries, Starting Batteries for Auto Car Motorcycle, Dual Voltage Output Detection and Repair : Automotive Amazon.com: Battery Charger Automatic 6V 12V 1.5A, Trickle Charger Suitable for AGM Gel SLA VRLA Flood Lead-Acid Batteries, Starting Batteries for Auto Car Motorcycle, Dual Voltage Output Detection and Repair : Automotive](https://m.media-amazon.com/images/I/71OV5ZbJcRL.jpg)