How is the Battery Tender Jr. battery charger different from a trickle charger?
In a fashion similar to the Battery Tender Plus, the Battery Tender Jr. employs a higher level of sophistication in its use of electronic control to maintain a battery in a full state of charge over extended periods of time. Although its power output is less than the Battery Tender Plus, the Battery Tender Jr. employs a similar charge control method to keep the battery at full charge while minimizing the long-term risk of overcharge and premature capacity loss. Trickle chargers are simply not capable of regulating the output voltage applied to a battery as the battery ages, or if a different battery with different characteristics is connected to the trickle chargers output terminals. The Battery Tender Jr. is capable of charge maintenance on all lead acid battery types, including both AGM and GEL cells.
