What are charging sources of lithium battery?
Alternator: Most factory alternators will sufficiently charge ZRGP lithium batteries and do not require any changes.
Inverter: Most inverters have a battery-type switch that can either be selected to AGM for the closest setting to lithium or have a custom voltage setting that can be programmed to optimize your lithium battery.
Inverter/Charger: You can set your inverter chargers voltage to charge bulk and absorb between 14.4V and 14.6V. The float should be set to 13.6V.
Standard Charger: ZRGP batteries internal BMS allows you to use a standard battery charger, in some cases a standard charger may not fully charge ZRGP lithium battery and you may need to purchase a lithium charger to get the full usable capacity from it.