joinfworld

Joinfworld's ASW-A701S is a heavy-duty 1-2-BOTH-OFF battery disconnect switch that safely isolates one or two 12–48V batteries and provides a reliable waterproof cut-off for vehicles, boats, and power banks. This compact, marine-grade battery isolator is built to control two battery banks with four clear...

Joinfworld's 12V Battery Disconnect Switch is a heavy-duty, 200A master cut-off with a side-post mounting bracket engineered to safely isolate 12–48V DC systems for vehicles and battery banks. This compact, high-current battery shut-off provides a clear on/off control to stop power flow for storage,...

Joinfworld Relay Box is a ready-to-install 12V automotive fuse and relay panel that combines six relays and fourteen ATC/ATO blade fuses in a waterproof, LED‑monitored housing. This preassembled relay fuse box simplifies vehicle electrical upgrades by grouping relays, fuses and status LEDs in one...

Joinfworld's 3/8" thru-panel battery bulkhead connectors are a 250A copper-core jump post kit that lets you route and access battery terminals through a firewall or panel for charging and jump-starts. These connectors are designed to give the battery access point a clean, safe passthrough...

The Joinfworld 500A Battery Disconnect Switch is a heavy-duty 12–36V battery cut-off with a fixed handle and lockable plate to safely isolate high-current battery systems. This rugged isolator is designed to stop parasitic drain, provide a clear off position for servicing, and act as...

This Joinfworld 6-gang rocker switch panel is a pre-wired, waterproof 12V control board with blue indicator LEDs designed to operate multiple boat or vehicle accessories from one compact, durable aluminum and ABS housing. Whether you’re fitting a small workboat, upgrading an off-road vehicle, or...

Joinfworld ANL Fuse Holder kit supplies a heavy‑duty, waterproof 1‑in‑2‑out fuse distribution point with dual 300A ANL fuses plus 400A and 500A spares, supporting up to 1000A circuits. This compact ANL fuse block is built for high‑current automotive and marine systems where reliable protection...

Joinfworld 36Pcs JCASE Fuse Assortment is a ready-to-go set of low-profile, box-shaped micro cartridge fuses (20A–80A) designed to replace or stock the most common high-current fuses found in modern cars and light trucks. This kit bundles six amp ratings—20A, 30A, 40A, 50A, 60A and...

A compact 36-piece JCASE fuse assortment combining tall/standard and low-profile box fuses in six amperages (20A–80A) for wide automotive compatibility. This kit provides a selection of Joinfworld JCASE fuses designed for routine vehicle electrical maintenance, emergency replacement, and workshops that service Ford, Chevy/GM, Nissan,...

Joinfworld Remote Battery Terminals 3/8" Stud kit provides an accessible 250A jump/charge post with heavy-duty bracket, 4-gauge wiring, and protective boots so you can relocate and use your battery safely and conveniently. The Joinfworld remote battery terminal kit is a complete battery relocation and...

Joinfworld Remote Battery Terminals are a heavy-duty 250A 12V brass charging and jump-post kit with 3/8" studs and weatherproof covers for easy, safe remote access to your vehicle battery. Keep battery access simple and secure without reaching into cramped engine bays. This remote battery...