Smart Battery Lithium Ion Batteries have a built in battery protection system that allows them to be charged with a standard charger. In some cases if your battery charger does not reach 14.4V - 14.6V during charging it may not fully top off the Smart Battery. In this case we would recommend you purchase a Smart Battery Charger.

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• Alternator : Most alternators charge around 14.4 - 14.8V This will sufficiently charge a Smart Battery under normal circumstances 

• Inverter Charger / Solar Controller : Most inverter chargers have a remote that can program the charging system to either lead acid, gel or agm batteries. They will typically have a custom setting as well. Simply set the custom 3 stage charging as follows:
  (If you do not have a custom setting choose the profile as close to this as possible without going over 15V)
  
  
• Bulk 14.4V
• Absorb 14.6V
• Float 13.6V
  
  
• Zero Memory Charging : Smart Batteries are 99.1% efficient and have no memory. This allows you to drain the battery and re charge at any depth of discharge (DOD). 

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