Alternator Linearisation Device (24 V)

(NOTE: ALD DEVICES ARE BUILT BY HAND IN THE UK. PLEASE ALLOW LONGER DELIVERY PERIODS FOR MANUFACTURE TO ORDER).

The ALD24 stabilises the behaviour of modern 24 V alternators by extracting a clean, predictable signal from the raw multi-pulse rectified output. It converts a noisy alternator waveform into a linear, stable voltage reference that downstream equipment can rely on.

Many 24 V systems—DC/DC chargers, split-charge controllers, lithium management equipment, external regulators—depend on accurate alternator sensing. Ripple, voltage drop, and transient loading can all cause false triggering or unstable operation. The ALD24 removes that instability.

Key functions

Absorbs massive and destructive voltage spikes that are expected to occur if an alternator load is disconnected during operation (Lithium BMS interrupting charge, fuses blowing, large changes in loads, cables disconnecting)

Normalises alternator output into a clean, stable reference.

Ensures sensitive electronic equipment such as DC/DC chargers sense the alternator correctly.

Stabilises voltage readings on vehicles with ageing alternator diodes or high-current loads

NOTE: The ALD24 is suitable for BB122465 and BB242435 use, but should not be used for BB1224120 use. For BB1224120 stabilisation off of an alternator supply, use the ALD24HC (High Capacity)