Mastervolt Mass 24/100 Professional 24 V 100 A Battery Charger

The Mass 24/100 is the ideal solution for extreme conditions, designed for professional, semi-professional, and recreational use. With advanced RF-isolation technology, premium components, and robust design, this charger guarantees reliable and continuous power even in the harshest environments.

Main Advantages

Engineered to perform reliably under extreme environmental conditions.
Durable housing made of anodized aluminum and stainless steel.
Insulated internal components to prevent damage from humidity or condensation.
Protected against electromagnetic interference from other equipment.
Compatible with all battery types, including fully discharged batteries.
Supplied with a battery temperature sensor as standard.
Delivers full power output up to 40 C ambient temperature.
Suitable for battery banks from 80 up to 2000 Ah and beyond.
Stable, ripple-free output even without batteries connected.
Current Control function prevents fuse failures when power supply is limited.
Multiple units can be connected in parallel.
Compliant with CE, ABYC A-31, and IEC60945 standards.
GMDSS-compatible models available for SOLAS applications.

GMDSS Compatibility

All Mass series chargers are compatible with the Global Maritime Distress and Safety System (GMDSS), enabling alarm monitoring for professional maritime applications.

Lithium-Ion Battery Charging

Mass chargers communicate directly with lithium-ion batteries via MasterBus or can be configured to the required charging voltages, ensuring safe and efficient charging cycles.

MasterBus Compatible

With just a single cable and connection, the Mass 24/100 easily integrates into the MasterBus network, providing centralized, local, or remote monitoring, configuration, and system control.

Robust and Reliable Design

Built with premium components and certified for vibration and shock resistance, the Mass 24/100 ensures dependable operation even in the toughest professional environments.

General Specifications

Nominal output voltage	24 V
Charge current	100 A at 28.5 V
Number of battery outputs	1
Battery capacity range	200 1000 Ah
Nominal input voltage	230 V (180265 V), 50/60 Hz
Power supply function	Yes (also without batteries)
Galvanic isolation	Yes
Display	LED
Dimensions (HWD)	420 318 130 mm
Weight	7.7 kg
Certifications	CE, ABYC A-31, RRR, RMRS

Technical Specifications

Charging curve	IUoUo, automatic 3-stage+ (Gel/AGM/Liquid/Lithium)
Bulk voltage	28.5 V
Absorption	28.5 V 4 hours
Float (Liquid)	26.5 V
Float (Gel/AGM)	27.6 V
Temperature sensor	Yes (included)
DC self-consumption	< 1 mA
Full load consumption	3500 W
Power factor	> 0.95
Ambient temperature	-25 C to +80 C (derating > 40 C)
Cooling	Variable speed fan
Protections	Overtemperature, overload, short-circuit, high/low battery voltage
Ingress protection	IP23
MasterBus compatible	Yes
Charger Status Interface (CSI)	Yes