Original price
$3,199.00
-Original price
$3,199.00
Original price
$3,199.00
Current price
$3,039.05
$3,039.05-$3,039.05
Current price
$3,039.05
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PRE-ORDER: This item is currently on its way to RUiXU's US warehouse. New stock is expected late November 2026, and pre-orders ship as soon as it arrives.
RUiXU Lithi2 Series
20kWh of Whole-Home Storage in One Unit
The RUiXU Lithi2-20 stores a full 20kWh (51.2V, 392Ah) of LiFePO4 energy in a single floor-standing unit with the same compact footprint approach as the Lithi2-16, so one battery covers serious whole-home backup without a wall of rack modules.
It is rated for 9,500+ cycles at 80% depth of discharge with a 15-year design life, carries an IP55 rating, self-heats for cold-weather charging, and talks to your inverter over CAN, RS485 or Bluetooth with over-the-air firmware updates. Renewable Outdoors is an authorized RUiXU dealer, and every Lithi2-20 we sell is backed by RUiXU's 10-year warranty. This model is on pre-order: stock reaches RUiXU's US warehouse in late November 2026 and pre-orders ship as soon as it lands.
10-Year Limited Warranty
Price Match Guarantee
Authorized RUiXU Dealer
Free Shipping
0% APR Financing via Affirm
Talk to a Human: (303) 876-7654
Why the Lithi2-20
20kWh in One Cabinet
392Ah of capacity means fewer units, fewer cables and a cleaner install for whole-home backup and off-grid systems.
9,500+ Cycle Life
Rated at 9,500 cycles or more at 80% depth of discharge, with a 15-year design life and intelligent 150mA passive cell balancing.
All-Pole Protection
A fuse on the negative terminal and a micro circuit breaker on the positive terminal protect both poles, plus an emergency power-off function for service safety.
Self-Heating, IP55 Sealed
The built-in heater starts at or below 41F (5C) so the battery can charge through winter, and the IP55 enclosure shrugs off dust and water spray in garages and outbuildings.
Bluetooth OTA Updates
Firmware upgrades complete wirelessly in about two minutes through the RUiXU App, and a side inspection port gives direct BMS access for maintenance.
Roll It Into Place
Lifting rings, base feet, optional wheels or brackets make a 320 lb battery genuinely deployable, and it pairs with the RX9MP 800A busbar and Lithi2 wall-mount kits.
What's Included
In the Box
RUiXU Lithi2-20 51.2V 392Ah LiFePO4 battery
OP140-L20 1/0AWG cable set (orange + black), standard included
Optional accessories for the Lithi2-20 include the RX9MP 800A busbar, the wall-mounted kit for Lithi2-16 / Lithi2-20, Fuma wheels, and the RX-CB-US-20 conduit box for RX-12K and Sol-Ark 15K pairings.
Pre-order; US warehouse arrival expected late November 2026
RUiXU notes that product specifications are subject to change without notice. Call us at (303) 876-7654 if a figure here is decisive for your purchase and we will confirm it against the current datasheet.
Every RUiXU battery we sell is backed by RUiXU's 10-year limited warranty, and as an authorized RUiXU dealer we can help you navigate a claim if you ever need one.
Price Match Guarantee
Find it cheaper at another authorized RUiXU dealer? Call us before you order and we will take care of you.
Help From People Who Sell These Every Day
Call (303) 876-7654. We would rather spend ten minutes helping you pick the right setup than process a return later.
Lithi2-20 Questions
How is the Lithi2-20 different from the Lithi2-16?
Capacity and endurance. The Lithi2-20 stores 20kWh against the Lithi2-16's 16kWh, and it is rated for 9,500+ cycles at 80% depth of discharge. Both are IP55, self-heating, Bluetooth OTA units with a 10-year warranty; the 20 is the pick when you want fewer units for the same backup.
Can it charge in freezing weather?
Yes. Its self-heating function starts at or below 41F (5C) and runs until the cells reach 53.6F (12C), and RUiXU rates charging down to -13F (-25C). The IP55 enclosure also suits garages, barns and outbuildings.
What inverters does it work with?
It communicates over CAN and RS485 plus Bluetooth, the same RUiXU protocol family that pairs with Sol-Ark, Solis, Victron, Growatt and most major hybrid inverters. Call us at (303) 876-7654 with your inverter model and we will confirm the pairing and the right communication cable before you order.
How do I move a 320 lb battery?
The Lithi2-20 ships with lifting rings and base feet, and optional wheels or brackets are available, so a two-person crew can position it without special rigging. It also works with the Lithi2 wall-mount kits and the RX9MP 800A busbar for multi-unit banks.
When will my Lithi2-20 ship?
This model is on pre-order. RUiXU expects US warehouse stock in late November 2026, and pre-orders ship as soon as it arrives.
Is Renewable Outdoors an authorized RUiXU dealer?
Yes. Renewable Outdoors is an authorized RUiXU dealer, so your battery ships brand new with the full RUiXU 10-year limited warranty and full manufacturer support.
Do you offer a price match?
Yes. Our Price Match Guarantee means if you find the same item cheaper at another authorized dealer, call us at (303) 876-7654 before you order and we will take care of you.
