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Chargers

40A Battery Charger – Kisae AC1240

The AC1240 is a 40A multi-stage battery charger designed for deep-cycle battery systems in marine and RV applications. It supports charging up to 3 battery banks with selectable profiles for gel, AGM, flooded, and lithium-ion batteries.

MAIN IMAGE

The AC1240 delivers 40A charging current at 14.2–15.5 VDC output with 700W power capacity and >82% efficiency. Multi-stage charging algorithms optimize charge profiles for different battery chemistries, reducing charge time and extending battery life.

Compact form factor suits installations with space constraints. Selectable charging modes accommodate gel, AGM, flooded, and lithium-ion battery types, plus a programmable mode for custom applications.

APPLICATIONS

Primary use cases.

Marine Vessels

Multi-bank charging for auxiliary and house battery systems on cruising sailboats and powerboats.

RV and Off-Grid Systems

Dry-camping and boondocking applications requiring reliable deep-cycle battery replenishment from AC shore power or generator.

TECHNICAL DATA

Complete specifications and tolerances for the 40A Battery Charger – Kisae AC1240.

PARAMETER SPECIFICATION
Model AC1240
Output Voltage 14.2–15.5 VDC
Output Current 40 A
Power Rating 700 W
Efficiency >82%
Battery Bank Capacity Up to 3 banks
Supported Battery Types Gel, AGM, Flooded, Lithium-Ion, Programmable

TECHNICAL FAQ

Common specifications and regulatory inquiries.

How many battery banks can the AC1240 charge simultaneously?
The AC1240 supports charging up to 3 separate battery banks with independent sensing and control.
What battery chemistries does the AC1240 support?
Gel, AGM, flooded lead-acid, and lithium-ion. A programmable mode allows custom charge profiles for specialized applications.
What is the physical footprint?
The AC1240 features a compact design suitable for space-constrained marine and RV installations.
What is the efficiency rating?
The charger operates at greater than 82% efficiency, minimizing heat generation and power loss.