Add a third Lithionics battery
On the Essex, Newmar offers a third Lithionics battery as a factory option, so many Essex coaches have a ready spot for one. We add a matching Lithionics battery to grow the bank.
Many Newmar diesel pushers leave the factory with Lithionics lithium, and those systems have room to grow. We've been an authorized Lithionics dealer for over ten years, and as Quartzsite's exclusive Lithionics dealer, we add matching Lithionics batteries to Newmar coaches, convert AGM coaches to a factory-style Lithionics system, and add solar and Victron charging so you can leave the generator off.

Lithionics comes standard on the Newmar Essex, Newmar's top of the line, and is available on other Newmar models. On the Essex, Newmar also offers a third Lithionics battery as a factory option, so if your coach left the factory with two, there's a ready spot for a third.
Factory setups vary by model and year. We see both 630 Ah and 320 Ah Lithionics modules, paired with an external 400 A BMS. On models below the Essex, there's room for a 320 Ah module right next to the factory 630, an easy way to add capacity.
The Lithionics BMS is set up through the Lithionics Bluetooth app and reports to the coach's system over the RV-C network, and we configure it as part of the job.
Not sure what your coach has? Call 520-261-2950 with your year and model and we'll help you find out.

The external BMS on Newmar factory Lithionics systems, and on some Winnebago models, is the Lithionics Single Channel NeverDie® BMS.
| Current rating | 400A continuous. 325A continuous with a single 4/0 wire; 400A continuous requires 350MCM or 2x4/0 cables connected to each of the BMS terminals for heat dissipation |
|---|---|
| Voltage | 12.8V to 102.4V (4S-32S); 12V, 24V, 48V, 51V and 102V versions |
| NeverDie® Power Reserve | Built-in safety shutdown at 10% battery |
| Communication | iONbus® (M12 connector), which combines OptoLoop and RV-C CANbus technology into one connector |
| Bluetooth® | App (iOS, Android) for monitoring, datalogging, firmware updates and PIN security |
| Protection | Reserve cut-off; pack and cell over/under voltage; cell over/under temperature; contactor over-temperature; short circuit; over current; pre-charge circuit |
| Integrates with | Victron Cerbo, Wakespeed WS500 alternator regulator, RV-C CANbus compliant devices, NMEA2000 compliant devices, and more |
| Size / weight | 13.0" x 23.7" x 4.0" (330.2 x 602.0 x 101.6 mm) · 8.0 lbs (3.6 kg) · IP66 |
That cable requirement is why we replaced the factory single 4/0 in the 2023 Essex below. Figures as published in the Lithionics Single Channel BMS data sheet (DS-018 Rev.B), linked from the Single Channel NeverDie® BMS product page.
Every coach is a little different. We look at what's in your bay, how you camp and what you want to run, then plan the expansion around it.
On the Essex, Newmar offers a third Lithionics battery as a factory option, so many Essex coaches have a ready spot for one. We add a matching Lithionics battery to grow the bank.
On Newmar models below the Essex, there's room for a 320 Ah Lithionics module right next to the factory 630 Ah module.
Coach left the factory with AGM batteries? We can convert it to a factory-style Lithionics system, like the 2022 New Aire below.
More battery is only half of it. We add roof solar and Victron Energy charging and monitoring so the bank actually gets refilled off-grid.
Lithionics is the lithium many Newmar coaches come with from the factory. Here's what you get when you expand with matching Lithionics batteries.
Every Lithionics battery is a starting and deep-cycle battery, so a Lithionics bank works with your coach's dash boost ("aux start") switch.
Lithionics batteries carry a UL 1973 listing for the complete, fully assembled battery, not just the cells.
Lithionics batteries can be shipped by air, overnight, anywhere in the USA and into Canada, so if a battery is ever needed on the road, it can get to you fast.
We work on Newmar Class A diesel pushers every season. Equipment varies by model, year and the options the coach was ordered with, so we confirm what's in yours before we plan anything.
Other Newmar Class A coaches too. Tell us your year and model when you request a consultation.
This Essex came with dual 320 Ah Lithionics modules and room for a third. The owner added the third, then needed more, so we added three more for six 320 Ah modules in all. We modified the battery rack in-house to carry the bigger bank.
The owner had also been dealing with cables getting extremely hot. When we tore into the bay we found the cause: the plans for the coach's dual Xantrex SW3012 inverters call for double 4/0 or 350 MCM cable from the BMS to the bus bars, and the factory had used single 4/0 with hammer crimps. We removed those cables and made new ones with tinned copper lugs, crimped on our hydraulic crimper.


This New Aire left the factory with 6V AGM batteries. We converted it to dual 630 Ah Lithionics modules with built-in heaters and a 400 A external BMS that talks over the coach's CAN bus network. We configured the lithium clone file and uploaded it into the coach's Silverleaf system, so it runs its new bank like a factory lithium Newmar.
We also added 2400 W of solar on custom 80/20 aluminum racks, bolted to the factory roof-line gussets, with dual Victron SmartSolar MPPT charge controllers, a Victron Lynx Distributor, a 5k Quattro inverter/charger, a Cerbo GX and GX Touch 70. Besides 80/20, we also build racks from 6061 aluminum.



By far the best I have owned and for that matter ever seen… the install was impeccable and really a work of art.

Often, yes. Newmar offers a third Lithionics battery as a factory option on the Essex, so an Essex with two often has room for a third. On models below the Essex, there's room for a 320 Ah module next to the factory 630. Call with your year and model and we'll tell you what fits.
The Lithionics BMS is configured through the Lithionics Bluetooth app and reports to the coach's system over the RV-C network. We set it up as part of the job.
Yes. We converted a 2022 New Aire from factory 6V AGM to a factory-style Lithionics system that runs like a factory lithium Newmar.
We can. Many Newmar owners add roof solar and Victron Energy charging and monitoring along with the batteries, so the bigger bank gets recharged without the generator.
With Lithionics, yes. Most motorhomes have a momentary boost switch on the dash, often called "aux start." If the chassis battery is dead, you hold it down to jump-start the engine from the house battery without leaving the driver's seat. Every Lithionics battery is a starting and deep-cycle battery, so a Lithionics bank works with the boost switch. As with any job, we still look over your coach's setup.
Lithionics batteries can be shipped by air, overnight, anywhere in the USA and into Canada. If a battery is ever needed on the road, it can be air-shipped overnight. Call us at 520-261-2950.
The shop is open mainly October through April. Consultations and troubleshooting support are year-round, so you can plan ahead in the off season. Request a consultation or call 520-261-2950.
Tell us your coach's year and model, what's in the bay now and how you like to camp. We'll get back to you, usually within a business day, all year round.