Lithionics GTX – 320 Amp Hour Lithium Battery


  • State-of-the-art lithium battery with integrated NeverDie® Battery Management System (BMS) to ensure the batteries are operated within their rated specifications. Unlike many competitors which offer lower quality MOSFET based BMS designs, Lithionics uses heavy duty contactors for BMS on/off switching controlled by a custom microprocessor.
  • Check out our blog post using two (or more) of these batteries with a secondary alternator for near limitless power! We also sell these as part of a discounted bundle.
  • Small form factor – a great way to squeeze the most battery capacity into a small space like a van – much smaller than using a bank of “typical” 100 amp hour batteries.
  • Integrated heater for charging/discharging in all climates and conditions.
  • Built-in Bluetooth allowing you to monitor battery voltage, state-of-charge, temperature, current, and status code from the Lithionics iOS or Android app.
  • Shipped directly from Lithionics in Clearwater, Florida with truck freight. We offer a few options below. If you purchase two or more batteries, you have the option to ship the batteries the nearest FedEx terminal which is more convenient for many customers.
  • These batteries are built in batches to order and extensively tested prior to shipping. Currently lead times are 3-5 business days. We suggest you order early! Feel free to contact us with any questions.
  • Automatic discounts applied if you purchase more than one battery! Save $100 on 2x batteries, $200 on 3x batteries and $300 on 4x batteries.
  • We can offer you a 2% discount on these batteries if you are able to purchase with an ACH payment instead of a credit card. It’s a simple process – we email you an invoice with a payment link and you enter the bank account number and routing number securely with QuickBooks. Please contact us if you’d like to take advantage of this offer!
  • Please be aware that Lithionics requires ALL customers to complete a Request for Information form and Warranty Registration form. Please also review their terms and conditions (PDF) prior to purchase.

SKU: GTX12V320A-E2107-CS200 Categories: ,
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315 amp hours (4096 watt hours)

These are very high quality lithium batteries. We encourage you to review the video on this page comparing them to another popular battery used in camper vans.

Internal/Integrated Neverdie® BMS Features:

  • NeverDie® Power Reserve (Spare Fuel) for Hotel Loads and Engine Cranking
  • Over-Charge, Over-Discharge and Short-Circuit Protection (LVC, HVC, SCC)
  • Low/High Temperature Charge/Discharge Protection
  • Internal Heating Kit: Permits Charging as low as -20C/-4F
  • Pushbutton On/Off switch for Safety and Storage
  • Battery Gauge and Status Codes for Health Monitoring
  • Bluetooth wireless telemetry with Lithionics Battery iOS and Android app
  • CANbus telemetry in the RVIA RV-C format (M12)
  • An alternator Field Control Circuit (FCC) (AMPSEAL8)
  • Remote LED illuminated On/Off Power switch (AMPSEAL8)

User Manual (PDF)
Warranty FAQs (PDF)
Performance Report (PDF)
Optional Remote Control Switch (PDF)


Compatible with inverters up to 3000 watts. Do not use with higher wattage invertors or to parallel-connected inverters. You must have at least 2x of these batteries in parallels when used with a Victron Multiplus 12/3000/120.

Nominal Voltage:
12.8 Volts
Nominal Capacity:
320 AH
Nominal Watt Hours:
4096 WH
Internal Resistance:
<3 milliohms
Charging temperature range:
32F/0C to 131F/55C
Charge voltage:
14.4V recommended, 14.6V maximum
Recommended float charge voltage:
13.4V - 13.6V
Recommended charge current:
Allowed max charge current:
Discharging temperature range:
-4F/-20C to 131F/55C
Output Voltage Range:
10.4V to 13.4V
Recommended discharge current:
Max discharge current:
Pulse discharge current:
1200A (1 SEC)
Discharge cut-off voltage:
NeverDie® Power Reserve @ 12.00V Low-Voltage Cut-Off @10.4V
Mechanical characteristics
Approx. 68lbs (30.8kg)
Storage Temperature & Humidity Range:
< 1 Month
-4~95°F (-20~35°C), 45~75%RH
< 3 Months
14~86°F (-10~30°C), 45~75%RH
Recommended storage
59~95°F (15~35°C),45%RH~75%RH
Self-discharge rate:
Residual capacity
≤3% per month; ≤15% per year
Reversible capacity
≤1.5%per month; ≤8% per year
Long Term Storage:
If the battery needs to be stored for > 3 months the voltage should be 13.2V (50%SOC), and stored at the recommended storage specifications shown above. Additionally, the battery needs at least one charge & discharge cycle every six months.

Lithionics Compared to "B" Brand

Our Lithionics Factory Tour & Deep Dive Into Their Batteries

This image does a great job of showing the benefit of the smaller footprint of the Lithionics 315 amp hour battery compared to a bank of 3x "typical" 100 amp hour batteries.

Important Installation/Use Notes

When installing these batteries into your electrical system, Lithionics recommends 4' (or longer) size 2/0 cabling from the battery terminals to your disconnect switch. Then you may use a minimum of 8' of 4/0 cabling for the rest of the pathway to a MultiPlus inverter/charger (from the battery switch, through the main fuse, to the Lynx Distributor (bus bar) and from the Lynx to the MultiPlus DC power in). Our example wiring diagrams call this out.

We then recommend using the manual disconnect switch as follows:

When going from "use mode" to "storage mode" first turn off the batteries from the system using your disconnect switch and then turn off the batteries themselves with the power switch on the batteries.

When going from "storage mode" to "use mode" you should first ensure that your battery disconnect switch is off, then you can turn on the batteries with the power switch on the batteries. Once you observe a solid LED light on the battery switch you can then turn on the battery disconnect switch.

This configuration and procedures will protect the battery from damage by the inverter.

If you are using Lithionics batteries with a Victron MultiPlus or MultiPlus II 12/3000/120, you should be aware these units draw the most current during "pre-charge", and require special consideration. You should ensure that you're using the latest firmware on the batteries (2.07 or higher). In addition, as of January 2022, Lithionics has updated their battery hardware to add an "internal pre-charge circuit".

If you're using two or more batteries in your system (as our examples show), it's important to differentiate the batteries on the CAN bus. By default, each battery will have the same "battery id" and "CANSA" which are 1 and 70 respectively. Think of these as their sort of address on that network. You can leave one battery as is, with the default settings but you need to change these addresses on the second (or third, etc.) batteries. This is very simple and this video shows how to do it.

Additional information

Weight 1088 oz
Dimensions 20.3 × 6.4 × 10 in