Alternators

High Output Alternators and External Alternator Regulators

A standard engine alternator is built to top up a starting battery, not to recharge a large lithium or AGM house bank. This collection brings together Balmar high output alternators, multi-stage external alternator regulators and the wiring, sensors and protection modules needed to run them. It covers 12V, 24V and 48V marine, RV, 4WD, truck and off-grid systems.

Balmar Alternators by Series and Output

Browse our high output alternators to match output, voltage and mounting style to your engine:

• 60 Series: 12V 100A and 120A, plus 24V 70A, in 3.15in or 4in saddle mount with isolated ground.
• 621 Series: single foot mount versions in 12V 100A, 12V 120A and 24V 70A.
• XT Series: 12V 170A and 250A, and 24V 90A, in 3.15in saddle, 4in saddle or single foot mount.
• 97XD and 97EHD Series: heavy duty 12V 240A, 24V 120A and 24V 190A options with K6 or dual V pulleys.
• 96 Series: 48V 60A and 100A alternators with K6 or K8 pulleys, in case ground or isolated ground configurations.

Many models ship without a pulley so you can reuse or fit the belt profile that suits your engine. Isolated ground designs suit marine installs where an isolated negative return is preferred.

Smart Alternator Regulators for Lithium and Lead-Acid Banks

An external alternator regulator controls field current so the alternator follows a proper bulk, absorption and float profile. It also protects the alternator from overheating under sustained load. Our alternator regulators range includes the Wakespeed WS500 Pro Bluetooth regulator, the Balmar ARS-5, MC-618, MC-612-DUAL, MC-624 and 48V MC-620, and the Mastervolt Alpha Pro III 12V/24V charge regulator.

The WS500 supports CANBus communication, and a dedicated Wakespeed CANBus to Victron crossover cable is available for integrated systems. For setup advice and configuration tips, see the Wakespeed WS500 buyer's guide.

Installation Accessories and Protection

The collection also includes the parts that make a complete charging system:

Wakespeed WS500 P-type and N-type wiring harnesses, CANBus terminators and covers. Battery and alternator temperature sensors in multiple cable lengths. Balmar Alternator Protection Modules for 12V, 24V and 48V systems. The Balmar Centerfielder II, SG200 Bluetooth Gateway, Tachometer Signal Stabiliser and Duo Charge DDC-12/24. A Smart Ready internal regulator kit for Yanmar/Valeo alternators and an installation hardware kit for Yanmar engines (excluding CX/LP Series).

Compatibility Notes

Match the alternator voltage to your house battery bank and choose a regulator rated for the same system voltage. Confirm the field type before ordering a WS500 harness, because P-type and N-type alternators need different wiring. Check your engine bracket against the 3.15in saddle, 4in saddle or single foot mount options, and confirm the pulley type suits your belt drive. Fit temperature sensors on both the alternator and the battery for full protection with lithium chemistries.

Choose a Balmar alternator paired with a Wakespeed, Balmar or Mastervolt regulator to get faster, controlled charging from every hour of engine run time. Order your complete alternator charging system today.