Lithium Rhino Marine 36V 120Ah LiFePO4 IP67 Conversion Kit
$1,799.00
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- Description
- Dimensions & Specs
- Additional information
Description
A 36V 120Ah LiFePO4 marine kit for 36V trolling motors on boats that run long days or big motors. One sealed IP67 pack replaces heavy lead-acid, delivers its full rated capacity, and ships with the charger, console gauge and helm power switch so the swap is done in one go.

The Rhino guarantee
If the battery fails for any reason within 8 years, Lithium Rhino replaces it at no charge.
8-Year Warranty
10+ Year Life
6,000+ Cycles
App ConnectedThe biggest 36V pack in the Rhino marine line. 120Ah means you stop watching the gauge and fish until you're done.
Serious technology, built to take a beating
Three reasons the switch pays off on the water.

Power for the whole trip
Lithium Rhino builds the marine line in several voltages and capacities, so you can size the pack to the way your boat is actually used.

Smart sleep modes
The pack drops into light sleep after 30 idle minutes and deep sleep after 7 more days, so stored charge is still there next trip.

Monitor it three ways
Read charge on the battery's color screen, the console gauge, or the free Rhino app. A helm button switches the pack on and off.

Technical specifications
| Nominal voltage | 36V |
|---|---|
| Capacity | 120Ah |
| Chemistry | LiFePO4, Grade A cells |
| Continuous discharge | 150A |
| Peak discharge | 500A |
| Max charge current | 50A |
| Cell balance accuracy | ±20mV |
| Cycle life | 6,000+ |
| Design life | 10+ years |
| Ingress protection | IP67 |
| Case | Dual-layer ABS, marine grade |
| Monitoring | On-battery LCD, console gauge, Bluetooth app |
| Included charger | 15A waterproof |
| Warranty | 8-year full replacement (Lithium Rhino) |
Take a closer look.
A complete drop-in lithium conversion for your boat.

Marine performance
120Ah of Grade A LiFePO4 behind the Rhino BMS. The flat voltage curve keeps the trolling motor at full thrust deep into the day.

Tough case, color screen
A marine-grade shell built for pounding and vibration, with a waterproof full-color display on the case for status at a glance.

150A smart BMS
150A continuous output and 500A peak, with automatic protection and cell balancing and an 8-year full-replacement warranty.

Zero maintenance
No water to top off and no corroded terminals. Install it once and get back to fishing.

What's in the kit
- Rhino IP67 marine LiFePO4 battery with built-in full-color LCD
- 15A waterproof lithium charger
- Full-color round console gauge
- External console power button
- Mounting hardware
- Free Lithium Rhino mobile app (Bluetooth)
Rugged protection, smart monitoring.
Protection and visibility are built in, with nothing extra to buy.
150A active battery management
Watches and balances every cell automatically from the first install.
iOS & Android app
Built-in Bluetooth pairs with the free Rhino app.
- Live SOC, voltage and per-cell temperature
- Fault alerts and cycle history
- Free, no subscription

Built to be your last battery.
Grade A cells, a dual-layer ABS case and the 150A Rhino BMS are each chosen for long service life on the water.
View tech specs



Got a question? We can help.
These are the questions we hear most. If yours isn't here, contact our team.

Talk to our marine and lithium specialists at Inverters R Us.
Will this kit fit my boat?
It fits most battery compartments. Measure your space before ordering, or contact us and we'll help confirm fit.
How long does install take?
Most owners finish in about an hour. The kit includes the charger, gauge and helm switch.
Can I keep my lead-acid charger?
No. Use the included 15A lithium charger; lead-acid profiles aren't suitable for LiFePO4.
What do I do with my old batteries?
Most battery shops and scrap yards take lead-acid batteries for recycling, and many pay scrap value.
How does it ship?
Tracking is emailed as soon as your kit is on its way.
8-Year WarrantyFull replacement from Lithium Rhino
Expert SupportReal techs at Inverters R Us
Authorized DealerGenuine Lithium Rhino product
Fast ShippingTracked delivery on every order

Additional information
| Weight | 75 lbs |
|---|---|
| Dimensions | 19.76 × 10.51 × 8.7 in |









