KAI

Name: KAI
Brand: KIMSEN

Portable bidirectional DC backup and charging unit, up to 4000 W.

4000 W

Power rating

95.5%

Peak efficiency

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Specifications

Model: KAI-1810MT
Output power: Up to 4000 W
Nominal output: 52 VDC
Peak efficiency: 95.5 %
Power flow: Bidirectional

01 /Overview

Product details

Portable bidirectional DC backup and charging unit, up to 4000 W.

High efficiency up to 95.5%, around 5% above comparable commercial units. Multiple protections for safe operation. Active power-factor correction avoids disturbing nearby equipment. Bidirectional power flow: charges batteries and, paired with a battery, works as a generator.

At a glance

Topology: Bidirectional DC backup & charger

4000 W

Power rating

95.5%

Peak efficiency

KAI-1810MT

Model

Up to 4000 W

Output power

02 /Engineering detail

What it does and how

Applications

APP

Charging electric-motorcycle lithium batteries and other devices
Grid-emulating power source running from a battery during outages
Off-grid power for camping, travel and locations without convenient mains access

Technologies

TECH

Smart four-stage charging that automatically regulates charge current and voltage
Ripple-Free Control that improves output-current quality and protects battery life
Totem-pole PFC (active power-factor correction) for high efficiency and minimal impact on shared supplies
Dual Active Bridge (DAB) converter for very high efficiency in both power directions
Cascode-MOSFET semiconductor switches enabling faster switching and a smaller overall unit
ARM Cortex (STM32G474RE) microcontroller running up to 170 MHz for reliable, complex control

Benefits

BEN

High efficiency up to 95.5%, around 5% above comparable commercial units
Multiple protections for safe operation
Active power-factor correction avoids disturbing nearby equipment
Bidirectional power flow: charges batteries and, paired with a battery, works as a generator

07 /Documentation