Curtis Battery Discharge Indicator 24V/36V – 35-C2087

Curtis builds this dual-voltage battery discharge indicator to run on either 24 or 36 volt systems, model 802RB2436BN, combining the discharge readout with an integrated hour meter and a lift lockout relay in one panel-mount instrument. The lift lockout function cuts lift capability when the battery reaches a preset discharge point, protecting a lead-acid or AGM traction battery from the deep discharge that shortens its service life, while the hour meter tracks running time for maintenance scheduling without a separate gauge. It mounts through a 3-terminal panel connection, the wiring configuration specific to this Curtis 802 instrument family, so the panel cutout and terminal count need to match what is coming out of the truck.

Confirmed fitment covers the Curtis 802 series and the Raymond 850 series of electric trucks, two platforms that share this same discharge indicator family across their instrument panels. Because the unit reads either 24V or 36V automatically, one part covers trucks running either voltage rather than requiring separate SKUs, which simplifies stocking a mixed-voltage fleet. A technician pulling the failed unit from a Raymond 850 series truck or a machine built on the Curtis 802 platform can source this as a like-for-like replacement without cross-shopping voltage-specific parts, as long as the panel mount and terminal count on the old unit match the 3-terminal configuration this instrument uses.