Buy the PowerVault R2 if your Grenadier already has a factory DTP roof outlet and you want removable USB-C, USB-A, 12 V, and local light access outside the vehicle without drilling. Skip it if your vehicle lacks the outlet, you need a permanently bolted enclosure, you expect submersion, or you have not verified that the selected factory circuit can support the intended devices.
The PowerVault is a finished alternative to building an exterior charging box from loose parts. It includes the hub and a 1 m DTP-to-Anderson lead. Its four magnets make the unit movable, but they are not mechanical fasteners. Its output labels describe the hub; the Grenadier’s connected circuit still determines how much total power is available.
What problem does the PowerVault solve?
Grenadier owners already use the roof outlets for exterior charging and camp power. In a July 2023 forum thread, owner lollo050968 described the same need in one sentence:
“Made a gadget to have external power in the RTT and outside while camping.”
lollo050968, “External roof power supply gadget,” The INEOS Forum, July 19, 2023
The PowerVault Utility Hub R2 packages that idea into one weather-ready enclosure. The factory DTP outlet supplies the input. The hub converts that connection into two USB-C ports, two USB-A ports, one cigarette-lighter-style 12 V socket, and an integrated light.
First gate: does your Grenadier have the required outlet?
The PowerVault does not add factory wiring. It plugs into a DTP roof outlet that must already be present. INEOS describes the High Load Auxiliary Switch Panel as an option that adds extra circuits and integrated weatherproof roof outlets. A vehicle without the applicable outlet needs a different power plan.
This is not safe to infer from trim alone. In the forum thread “Rooftop Power - Base model,” GeoBike asked whether the wiring existed behind a vehicle without the exterior outlets. thedocaus replied that the base model did not have the rooftop outlets or wiring unless the auxiliary-power option had been selected. That is owner experience, not a substitute for inspecting the actual vehicle.
Locate the physical DTP outlet you intend to use. Confirm its switch assignment and circuit information in the documentation for the exact vehicle. If the outlet is absent, the PowerVault is not plug-and-play on that build.
What is included—and what is not
| Item | Published specification | Buyer implication |
|---|---|---|
| PowerVault enclosure | Dust, mud, and rain exposure; not submersible | Exterior use, but not extended immersion |
| Input lead | 1 m DTP-to-Anderson cable included | No extra cable required for the base setup |
| USB-C | 2 ports, up to 65 W per port | Check device profile and total circuit capacity |
| USB-A | 2 ports, up to 22.5 W per port | Check device input and cable condition |
| 12 V output | 1 cigarette-lighter-style socket | Confirm the connected accessory’s requirements |
| Local light | Integrated, switch activated | Useful at the mounting point without occupying a port |
| Mounting | 4 industrial magnets | Repositionable; not equivalent to bolted retention |
The package does not include a new vehicle circuit, a permanent bracket, or proof that every output can deliver its nameplate maximum simultaneously. The vehicle-side fuse and the connected DTP circuit remain part of the system.
The load question: connector fit is not electrical approval
The PowerVault receives power from a factory DTP output and provides its own USB and 12 V outputs. That does not increase the capacity of the vehicle circuit. For every planned device, compare three limits:
- The device manufacturer’s input, startup, and running requirements.
- The rating of the PowerVault output being used.
- The fuse and circuit information for the selected Grenadier outlet.
The lowest applicable limit governs. Do not add 65 W + 65 W + 22.5 W + 22.5 W and treat the result as a guaranteed simultaneous output. DVA’s current product page explicitly makes USB output subject to the vehicle-side DTP fuse capacity.
For a circuit-by-circuit overview before you buy, read Grenadier Power On Demand: Map DTP & Pigtail Circuits. Use the current vehicle handbook or dealer information as the controlling source for the exact build.
Magnetic mounting: convenience with a clear boundary
Four industrial magnets make the hub easy to move between suitable metal mounting points. That is the product’s main practical advantage: exterior power can follow the work area, campsite, or load zone without holes or permanent brackets.
The same feature creates the main tradeoff. DVA describes the magnets as retention-strength, not mechanical-fastener strength, and recommends supplementary retention for high-vibration or dedicated permanent mounting. Test the exact surface, remove grit that can mark paint, keep the lead away from hinges and latches, and recheck the hold after routing the cable.
You need a fixed installation that cannot be repositioned, the intended surface does not hold the magnets securely, or the hub and cable would sit in a pinch, impact, or immersion zone.
Which jobs suit the PowerVault?
| Planned use | Fit | Reason |
|---|---|---|
| Phones, tablets, cameras, USB-C laptops | Strong fit | Four USB ports outside the cabin; verify each device and cable |
| Temporary camp or work-area charging | Strong fit | Movable enclosure and integrated light |
| One documented 12 V accessory | Conditional | Accessory requirement and vehicle circuit must both support it |
| Several high-draw devices at once | Needs calculation | One upstream vehicle circuit supplies every output |
| Permanent unattended installation | Weak fit | Magnetic retention is designed to remain removable |
| Submerged or continuously wet placement | Not suitable | The product is explicitly not rated for submersion |
| Grenadier without factory DTP outlet | Not plug-and-play | The required power source is absent |
EXT2 and EXT3 change how the system behaves
The physical outlet also determines switch behavior. In the owner thread “External sockets and roof mounted switches,” DaBull reported that EXT3 operated three roof outlets together while EXT2 operated the right-front outlet. The original poster then changed the lighting plan after realizing two rear loads would switch together.
Use that report as a planning warning, not a universal specification. Confirm the actual outlet and switch on the vehicle. If another accessory shares the switched group, include that load in the circuit plan even when it plugs into a different physical outlet.
When a DTP splitter belongs in the plan
A splitter is useful when one factory outlet must serve the PowerVault and a second DTP accessory. The DVA DTP two-way splitter adds a second connector without cutting or splicing the factory harness. It does not create a second circuit or double the available current. Both branches still share the upstream circuit limit.
PowerVault versus a custom exterior power box
A custom box can be built around a specific connector, fuse strategy, socket layout, and permanent mount. That route suits an owner who can document every component, terminate the wiring correctly, seal the enclosure, and accept the fabrication time.
The PowerVault is the simpler purchase when the goal is a finished, removable hub with known outputs and an included input lead. It gives up the customization of a one-off build in exchange for reversibility and a clear product boundary. Neither choice changes the capacity of the factory circuit.
- Your Grenadier has the factory DTP outlet you plan to use.
- You want exterior USB and 12 V access without drilling.
- Your intended devices fit the hub outputs and vehicle circuit.
- A removable magnetic mount suits the location and terrain.
- You can keep the hub out of submersion and cable pinch zones.
After purchase: use the setup guide
This buyer’s guide stops at the purchase decision. Once the fitment and load plan are confirmed, follow the separate PowerVault safe setup guide for outlet inspection, cable routing, switch checks, weather boundaries, and troubleshooting.
Browse the rest of the compatible cable and connector family in the Grenadier Power & Connectivity collection.
Sources
- DVA Mechanics — INEOS Grenadier PowerVault Utility Hub R2, live product specification and price checked September 22, 2026.
- DVA Mechanics — Grenadier DTP Two-Way Splitter, live product specification and price checked September 22, 2026.
- INEOS Automotive Media — Grenadier model range and auxiliary switch-panel description.
- lollo050968, “External roof power supply gadget,” The INEOS Forum, July 19, 2023.
- thedocaus, “Rooftop Power - Base model,” The INEOS Forum, June 8, 2024.
- DaBull, “External sockets and roof mounted switches,” The INEOS Forum.
The DVA Setup for This
Ready for removable exterior power?
Start with the PowerVault if the vehicle already has the required DTP outlet. Add a splitter only when a second accessory belongs on the same verified circuit.
Shop PowerVault → Browse Power & Connectivity