A versatile, fast, easy-to-use charger.
– Easy to use
– Automatically switches between 12-volt and 6-volt modes
– Digital display shows battery charge
– Has trickle charging and desulfation modes
– Fast charging
– Some reported issues with smart-charging feature
A smart battery tender that can recharge a depleted battery overnight.
– Smart features prevent overcharging
– Works with several types of batteries
– Includes desulfation and reconditioning modes
– Can overheat if not properly positioned
– Battery clamps are small and short
A heavy-duty car battery charger that can also jump start vehicles.
– Can work as a jump starter
– Very fast charging
– Can diagnose some battery issues
– Reports of some faulty products arriving damaged or not working after a couple months
A lightweight charger that can charge most any type of battery, including lithium-ion batteries.
– Can charge lithium-ion batteries
– Built-in thermal sensor
– Overcharge protection
– Fast-charging speed
– Manual can be difficult to understand
– Reports that desulfation mode doesn’t work well
A less robust, but less expensive version of the GENIUS10.
– Inexpensive
– Can charge lithium-ion batteries
– Built-in thermal sensor
– Overcharge protection
– Low amperage
