Free ShippingProduct Specifications for 36V 120Ah Lithium Rhino Marine LiFePO4 Conversion Kit
| BM Part #: | LR38V120AH-M |
|---|---|
| Voltage: | 38.4 Volt |
| Capacity: | 120 Ah |
| Energy Capacity: | 4,608 Wh |
| Type: | LiFePO4 |
| Length: | 19.76" |
| Width: | 10.51" |
| Height: | 8.70" |
| Shipping Weight: | 80.00Lbs |
| Warranty: | 8 Years |
| Reserve @ 25A: | 288 Minutes |
| IP Rating: | IP67 |
| Certifications: | UN38.3 |
What's in the box:
- IP67-rated LiFePO4 Battery
- 15A High-efficiency Waterproof Charger
- Full-color Round Gauage with Secondary Power Button
- IP67 Waterproof Protection: Sealed casing shields the battery from rain, spray, and rough water conditions.
- 150A Smart BMS: Active battery management continuously monitors and protects every cell for you.
- App Connectivity: Free Rhino app tracks live voltage, charge, and cell temperature from your phone.
- Complete Conversion Kit: Includes a waterproof charger, console gauge, power button, and mounting hardware.
- 6,000+ Cycle Lifespan: Outlasts lead-acid batteries many times over, cutting long-term replacement costs.
- Zero Maintenance Design: No water top-offs or corroded terminals to clean, ever.
- 8-Year Full-Replacement Warranty: Covers the cells, BMS, and electronics for total peace of mind.
- Heavy-Duty Footprint: Weighs 79.8 lbs in a 19.76 x 10.51 x 8.70 inch case.
Product Description
Built for Anglers Who Don't Do "Small Days" on the Water
When you're running big electronics, a heavy-duty trolling motor, and a full day on the water, a standard marine battery just can't keep up. The 36V 120Ah Lithium Rhino Marine LiFePO4 Conversion Kit is built for exactly that kind of day — tournament runs, offshore trips, and boats loaded with gear that all need reliable power.
Serious Capacity for Serious Demands
This is the largest battery in the Lithium Rhino Marine lineup, and it's built to match. With a 288-minute reserve capacity at a steady 25-amp draw, you get hours of dependable runtime even when you're pushing your trolling motor and running electronics at the same time. LiFePO4 chemistry keeps voltage flat and consistent, so performance doesn't taper off as the day goes on.
The rugged IP67-rated shell is sealed against rain, spray, and rough water, and a 10+ year life expectancy means this battery is built to handle whatever the season throws at it, trip after trip.
This is a full conversion kit, not just a battery, so everything you need to make the swap is included:
- Rhino IP67 marine battery
- 15-amp waterproof charger
- Full-color console gauge and external power button
- Mounting hardware and the free Rhino app
An Upgrade That Pays for Itself
Swapping out heavy lead-acid batteries for one lithium battery means more usable space, less weight dragging down your fuel economy, and none of the maintenance headaches that come with traditional batteries. Most owners have this kit installed in under an hour, and every kit is backed by an 8-year full-replacement warranty on the cells, BMS, and electronics.
Ready to Power Your Biggest Days on the Water?
Stop rationing power halfway through your trip. Add the 36V 120Ah Lithium Rhino Marine LiFePO4 Conversion Kit to your cart and fish as hard and as long as you want.
Frequently Asked Questions
Will this kit fit my boat's existing 36V trolling motor system?
A: This battery measures 19.76" L x 10.51" W x 8.70" H and weighs 79.8 lbs, with M8 female terminals for connecting your existing cables. Compare these measurements to your current battery tray before ordering to confirm a proper fit.
How long does installation take?
A: Most owners complete the swap in under an hour using basic hand tools. The kit includes mounting hardware, a console gauge, and a waterproof charger, so no extra wiring kits are needed.
Do I need the Rhino app to use this battery?
A: No. The battery runs fine without it. The free app is optional and simply lets you check charge level, voltage, and cell temperature from your phone over Bluetooth.
What does the 288-minute reserve capacity mean for my setup?
A: Reserve capacity is how long the battery can supply a steady 25-amp load before running low, giving you a real-world sense of runtime beyond the Ah rating. At 288 minutes, this battery is built for long trips running a trolling motor plus additional electronics.
Is this battery safe to ship and install?
A: Yes. It's UN 3480 and UN38.3 certified for lithium battery transport. These certifications are standard for lithium batteries and don't affect installation or everyday use.
