By Boat Battery editorial team · 2 minute read · Editorial policy
Only if it has a genuine lithium profile. Lead-acid float voltages and desulphation pulses are exactly what a BMS disconnects from.
Check existing charger behaviour
Identify the charger’s exact model and current manual. Compare its absorption voltage, absorption time, current limit and float or storage behaviour with the battery manufacturer’s requirements. Equalisation and desulphation modes must not operate unless explicitly permitted for that battery.
Battery-approved charge profile
A selectable lithium profile can be useful, but the profile must suit the installed pack. Some lithium manufacturers specify a float voltage; others use different standby arrangements. Do not disable a required stage or copy another owner’s settings without checking the manual.
Confirm configurable limits in the manual
Confirm whether the relevant settings can be changed and locked, how temperature compensation is handled and how charging stops when the BMS requests it. A setting labelled lithium does not prove every voltage and control behaviour is suitable.
Shore power installation considerations
Shore-power equipment also requires an appropriate marine AC installation. Have earthing, isolation, protection and any galvanic-corrosion measures assessed for the vessel; a new charger alone does not resolve every shore-power issue.
Technical references
Manufacturer guidance describes that equipment’s requirements. Confirm applicability to your own installation.
Related installation planning resources
Use these notes to prepare your own measurements and questions. Check the exact equipment manuals and have the proposed system assessed for your vessel before buying or changing electrical components.
Calculate your boat battery capacity
The house bank calculator takes your loads, your nights on the hook, your solar and your alternator, and returns the bank, the DC-DC charger, the AGM equivalent and the weight you take off the boat.
Open the calculator