Redarc Manager30 Battery Management System
Most RV electrical headaches come down to one thing: too many separate boxes doing jobs that don't talk to each other. The Manager30 is Redarc's answer — one unit that replaces the DC-DC charger, solar regulator, battery isolator and monitor you'd otherwise be wiring in individually, and it's become close to a default recommendation for anyone building a serious 12V system from scratch.
Key features
- 30A DC-DC (alternator) charging with a wide 9–32V input range
- Built-in MPPT solar regulator, so no separate solar controller is needed
- 240V mains/AC charging input (560W rated) for powered-site or generator charging
- Compatible with lead-acid, AGM, gel, calcium and lithium (LiFePO4) battery chemistries
- Pairs with Redarc's RedVision colour display for state-of-charge, current draw and time-remaining readouts
RV use case
This is a build-once unit for anyone setting up an auxiliary battery system in a motorhome, camper or caravan — particularly if you're chasing three charge sources (vehicle alternator, solar, mains) without a wall of separate hardware. Because it handles the isolator function too, it removes one more box from the wiring diagram, which matters in vans and caravans where under-bed or under-seat space is already tight.
Pros
- Genuinely consolidates DC-DC charging, solar regulation and isolation into one footprint
- Wide input voltage range suits both older alternators and modern smart-charging vehicles
- Lithium-compatible out of the box, so it doesn't need replacing if you upgrade your battery chemistry later
Cons
- Upfront cost is significant next to buying a basic DC-DC charger alone
- The RedVision display is sold separately, which adds to the real total spend
- Installation is a job for someone comfortable with 12V wiring, not a plug-and-play retrofit
Best for
Owners building or rewiring a full off-grid electrical system — new caravan fit-outs, van conversions, or anyone tired of a tangle of separate chargers and controllers under the bed.
Verdict
If you're wiring a system from the ground up, the Manager30 earns its price by removing complexity rather than adding a feature. It's not the cheapest way to charge a battery, but it's one of the tidiest ways to charge, regulate and monitor three power sources with a single unit and a single set of settings to manage.
Redarc Manager30 Battery Management System
Close-up of the terminal block and CAN connection, unit mounted and wired
Manager30 paired with the RedVision colour display
Full kit contents: unit, RedVision display, shunt and wiring accessories