Renogy 2.56kWh Slim 4WD Power Kit | Dual 208Ah Batteries
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The Owner's Insights on the Slim 4WD Power Kit
Slim batteries come up a lot lately. Usually from a bloke who's already tried fitting a standard lithium behind the seat and found there's no room left for anything else. If that's you, this kit's built for exactly that problem. Two of Renogy's Super Slim batteries, 61mm thick each. Stack them side by side under a false floor or behind your seat. You've still got space for a fridge slide or drawers, in the spot a single old-school battery used to eat.
Together the two give you 208Ah, 2.56kWh combined. That's enough to run your 60L fridge, lights and charge gear through a weekend without touching the alternator. The 2000W inverter handles your kettle and laptop with headroom. The 50A DC-DC charger tops your bank back up while you're driving.
Worth knowing before you buy: the inverter's own cover is 1 year, well short of the battery's 8. Budget for that if you run it hard. You'll still need to sort your own mounting and cabling. This isn't a plug-and-play power station. It's a system you wire in yourself.
Why You'll Love the Slim 4WD Power Kit
- Two 61mm Super Slim LiFePO4 batteries Combine for 208Ah and 2.56kWh without eating into your canopy space.
- 2000W pure sine wave inverter Runs your fridge, laptop and kettle clean, with a 4000W surge for the startup spike.
- 50A DC-DC charger with MPPT Charges off your alternator on the drive in, or off solar once you're parked.
- Bluetooth battery monitor with 500A shunt Check your charge, voltage and current from your phone instead of guessing.
- Rated for 6,000 charge cycles Years of weekend trips before your battery bank needs replacing.
- Optional 400W solar blanket Add the Solar Kit and keep your bank topped up without starting the engine.
Why You Should Consider a Renogy 4WD Power Kit
Renogy backs each part of this kit on its own terms, not one blanket promise. The battery alone carries 8 years prorated cover, longer than most standalone slim batteries on the market. Buy it as a matched kit and every component's already built to work together. You get a system backed by a brand with real AU stock and support behind it.
Slim 4WD Power Kit Specifications
| Total Battery Capacity | 208Ah (2 x 104Ah), 12.8V nominal - 2.56kWh combined |
| Battery Chemistry | LiFePO4, Super Slim slimline cell |
| Battery Dimensions (each) | 579 x 290 x 61mm (2.4in slim profile) |
| Battery Weight (each) | 12.8kg |
| Battery Charge / Discharge Current | 100A max charge, 200A continuous discharge, 290A peak (30s) |
| Battery Cycle Life | 6,000 cycles (80% DoD, 80% EOL, 0.5C, 25°C) |
| Battery Operating Temperature | Charge -10°C to 55°C (tapered below 0°C), discharge -20°C to 60°C |
| Battery Protection Rating | IP67 |
| Inverter Continuous / Surge Output | 2000W continuous, 4000W surge |
| Inverter Output | 220-240V AC, 50Hz, pure sine wave |
| Inverter Backup Function | Integrated UPS transfer switch, within 50ms |
| Inverter Efficiency | Up to 90% |
| Inverter Dimensions / Weight | 442 x 220 x 92mm, 4.8kg |
| DC-DC Charger Output | 50A, 660W |
| DC-DC Charger Input | Alternator 12-16V DC (smart or traditional), solar up to 50V / 660W MPPT |
| DC-DC Charger Dimensions / Weight | 244 x 146 x 96mm, 1.86kg |
| DC-DC Charger Ingress Protection | TBC - marketed as "IP67" in the kit name, but the charger's own AU spec sheet lists no enclosure rating; not confirmed against a primary source, see Gaps & Flags |
| Battery Monitor | 500A precision shunt, Bluetooth app, SOC / voltage / current / wattage / runtime |
| Solar Blanket (Solar Kit variant) | 400W N-Type, foldable blanket, up to 25% cell efficiency |
| Battery Warranty | 8 years, prorated |
| Inverter Warranty | 1 year |
| DC-DC Charger Warranty | 2 years |
| Battery Monitor Warranty | 2 years |
| Solar Blanket Warranty (Solar Kit variant) | 2 years |
| Certifications | DC-DC charger: CE, RoHS, FCC Part 15 Class B, ETL listed to UL1741 & CSA C22.2. Solar blanket (Solar Kit): FCC, IC, PSE, CE, RoHS, TSCA, CA65. Battery, inverter and monitor certifications not confirmed against an AU primary source |
| Total Kit Weight | TBC - supplier listing weight data unreliable, see Gaps & Flags |
| Model / SKU | RBT104x2-PUH2-RBC50-AU (Core Kit, No Solar), RBT104x2-PUH2-RBC50-400SB-AU (Solar Kit) |
Core Kit or Solar Kit: which slim 4WD power kit to pick
Mostly weekend trips, charging off the alternator on the drive in? Your Core Kit covers that. Parked up for days at a time, or camping somewhere your vehicle can't reach direct sun, add the 400W solar blanket instead. It folds down small enough to stow behind your seat with the batteries. You're not carrying a rigid panel you can't pack away.
Building a 4WD dual battery system without the guesswork
Piecing together your own 4WD dual battery system means sourcing a battery, an inverter, a charger and a monitor separately. Then hoping they actually talk to each other. This kit skips that step. Renogy's already matched the parts, so you're wiring in one system instead of testing four. You'll still need proper cabling and fusing for your vehicle. But the part most people get wrong, picking gear that's actually compatible, is already done for you.
Warranty on the Slim 4WD Power Kit
This kit isn't one blanket warranty term. It's several. Your battery carries 8 years prorated cover, the longest of any part in the box. The DC-DC charger and the Bluetooth monitor both get 2 years. The inverter gets 1. Register each component with Renogy after you buy, so your cover's on record if you ever need it.
What's Included
- 2x Renogy REGO 12.8V 104Ah Super Slim LiFePO4 Battery
- 1x Renogy 2000W 12V Pure Sine Wave Inverter
- 1x IP67 50A DC-DC + MPPT Charger
- 1x Renogy 500A Battery Monitor (BT-2) with Shunt and Cables
- Solar Kit variant only: 1x 400W N-Type Portable Solar Panel Blanket
What's Not Included
- Mounting tray or bracket for the batteries
- Cabling and fuses to wire the system into your vehicle
- Solar panel on the Core Kit (No Solar) variant
- Professional installation
Both variants ship as the components listed, ready to wire in.
Not Sure Which Slim 4WD Power Kit Suits You?
Only running lights, phones and a small fridge on weekends? Your Core Kit covers that, and you'll save yourself the panel cost. Parked up longer, or somewhere the alternator can't reach? Add the Solar Kit. One thing worth flagging: this is a kit you wire into your 4WD. It's not a plug-and-play portable power station. If you'd rather skip the install, one of those suits you better. Every component here carries Renogy's own manufacturer warranty. We'll back you up sorting a claim if you ever need one.
Slim 4WD Power Kit Manuals
Download the manuals for the Slim 4WD Power Kit for full technical details and setup instructions.
Inverter manual (PDF) · DC-DC charger manual (PDF) · Battery monitor manual (PDF) · Solar blanket manual (PDF, Solar Kit) · Warranty terms (DOCX)