# REDARC REDARC Alpha25 rear battery wiring kit

Canonical page: https://configmyrig.com/products/redarc-alpha25-rear-battery-wiring-kit

Pre-crimped cable and fuse kit for a rear-mounted auxiliary battery using the BCDC Alpha25 charger.

## Selected configuration

- Part/component: BCDCWK-104
- Configuration: 25A Alpha / rear installation / up to6.5m cable route
- Listed parts: $280.00 USD / selected configuration
- Source checked: November 6, 2026
- Fitment: Universal Alpha25 installation hardware, conditional for US2024+ LC250 all grades after an auto-electrician verifies the hybrid12V source, actual route length, mounting, battery chemistry and Toyota requirements. No LC250-specific harness or high-voltage connection approval.
- Product mass: Product weight unverified
- Net vehicle addition: Net addition unverified
- Weight basis: Maker page/manual does not establish complete gross assembly or net vehicle-added weight. Cable trimming changes carried mass; weigh the finished wiring and all added hardware. Shipping mass is excluded.
- Professional install: 3–5 hr; researched planning estimate
- Basis: Researched professional wiring-task allowance3–5hours for protected front-to-rear routing, trim access, measuring/cutting, approved crimping/terminations, fuse-holder attachment and electrical checks using exact INST187-3guide. No manufacturer shop hours published. Shared with existing Alpha25 charger job: use maximum grouped allowance rather than adding wiring twice. New battery mounts/fabrication and source-system redesign extra.
- Contents: Brown/black/red cables,40A fuse kit (four MIDI fuses/two holders), two150mm red leads,1m conduit,45cable ties and blue signal cable with2A MINI blade fuse/short lead per maker packing list. Charger, batteries, battery restraints and vehicle-specific brackets separate.
- Critical specifications: BCDCWK-104 for BCDC12025B Alpha25. Maximum stated battery-to-battery cable-route length6.5m/21ft4in. Includes40A MIDI fuse kit and2A signal-circuit fuse. Not an Alpha50 wiring kit; complete installed mass unverified.
- Supporting work: Correct cable and fuse sizing protects a charging circuit. A universal wiring kit does not approve a particular LC250 hybrid electrical installation.

## Prerequisites

- Selected product / listed contents (included): Brown/black/red cables,40A fuse kit (four MIDI fuses/two holders), two150mm red leads,1m conduit,45cable ties and blue signal cable with2A MINI blade fuse/short lead per maker packing list. Charger, batteries, battery restraints and vehicle-specific brackets separate.
- Exact compatible Alpha25 charger required (check): Requires REDARC BCDC12025B Alpha25, purchased separately or already owned. Alpha50, Classic BCDC and power-station chargers are not established substitutes.
- Auxiliary battery, restraints and protected12V source (check): Provide a compatible restrained auxiliary battery and charger mount, verify actual cable route no longer than6.5m and follow exact cable/fuse specifications. Qualified auto-electrician must confirm LC250 hybrid12V power capacity and connection/isolating procedure; never connect to traction high voltage.
- Shared job and exact packing list (check): This is wiring hardware only, not a battery or charger. Quote charger and cable installation together; grouped hours cover overlapping routing once. Inspect packing list and any additional terminals/grommets/restraints needed for the real vehicle.
- Installation / compatibility notes (check): Correct cable and fuse sizing protects a charging circuit. A universal wiring kit does not approve a particular LC250 hybrid electrical installation.
- Installed net weight (check): Product weight or factory equipment removed is not fully verified. Do not use shipping weight or assume zero additional load.

## Seller offers (selected configuration, low to high)

- [REDARC US](https://www.redarcelectronics.com/us/bcdc-alpha25-rear-install-wiring-kit): $280.00

Prices are dated snapshots; tax, shipping, installation and unlisted supporting equipment are extra. Availability is not inferred.

## Installation resources

- [REDARC INST187-3 Alpha wiring-kit fitting manual](https://cdn.intelligencebank.com/au/share/yE9N/zJpl/8Jd3b/original/INST187-3%2BInst%2BManual%2BBCDC%2BAlpha%2BWiring%2BKit%2BEN): official; Shared Alpha wiring-kit guide explicitly covering BCDCWK-104; charger/vehicle procedures separate. Exact104model included in cover/table and route specification; read full cable/fuse/connection instructions. Does not approve LC250 hybrid power architecture. No published professional hours or exact official installation video verified.

## All documented options

- [25A Alpha / rear installation / up to6.5m cable route](https://configmyrig.com/products/redarc-alpha25-rear-battery-wiring-kit): BCDCWK-104; $280.00 USD / selected configuration; Product weight unverified

## Owner evidence

No sufficiently matched report added. No review rating is inferred.

## Related guidance

- [Planning guide](https://configmyrig.com/guides/electrical-system-planning)
- [REDARC](https://configmyrig.com/brands/redarc)
- [Power & electrical](https://configmyrig.com/categories/power-and-electrical)

AI-assisted planning; exact vehicle/application and current supplier documentation require confirmation.