Lithionics Battery GTX12V320A NeverDie Compact Series 200 Internal BMS User Guide
- June 3, 2024
- Lithionics Battery
Table of Contents
Lithionics Battery GTX12V320A NeverDie Compact Series 200 Internal BMS
Safety
- All electrical work should be performed in accordance with local and national electrical codes.
- Assume that voltage is present at the battery terminals, use insulated tools and gloves while working on the system.
- Always turn off equipment connected to the battery in addition to turning OFF the Power button on the battery to isolate it from other electrical circuits, before performing any repairs or maintenance on the system.
- Always use proper wire sizes to connect the system to inverters, chargers, or other equipment.
- Always use crimped connections to connect to the battery terminals.
- Read and follow the inverter, charger, or other equipment manufacturers safety precautions prior to connecting the battery to that equipment.
- Always use charging equipment compatible with Lithium Iron Phosphate battery chemistry. See battery charging section below.
Overview
The purpose of this Owner’s Guide is to provide explanations and procedures for operating, maintaining, and troubleshooting the GTX12V320A-E2107-CS200 battery. The GTX12V320A battery is a lithium iron phosphate (LiFePO4) chemistry battery with an internal NeverDie® Compact Series 200 Battery Management System (BMS). The BMS monitors voltage, current and temperature of each cell inside the battery and protects the battery from potential damage by disconnecting the battery circuit when the monitored parameters go outside of the allowed limits. The BMS also transmits monitoring data over Bluetooth which allows customers to check the battery data on their mobile device.
System Components
The GTX12V320A-E2107-CS200-UL system ships with the following items:
- GTX12V320A-E2107-CS200 Battery
- Accessory Harness (#75-H1FCR-CS2-UL)*
- DC Circuit Breaker (Sensata #JLE-1-41340-250)*
- Protective DC Terminal Covers (Red & Black)
- Two Sets of M8x1.25mm Bolts and Lock Washers for the Terminals
Wiring and bus bars are not included.
NOTE
It is recommended to keep the battery box and packaging material in case
you need to return for service.
| Reference | Feature | Description |
|---|---|---|
| A | Positive Terminal | Brass, Nickel Plated, M8-1.25 Thread, Torque to |
108-132in-lbs (12.2 – 14.9N-m)
B| OptoLoop®+ Connector| RV-C CANBus Data, Remote Display Unit
C| Accessory Connector| FCC, Remote Power Button, Auxiliary DC Breaker
D| Negative Terminal| Brass, Nickel Plated, M8-1.25 Thread, Torque to
108-132in-lbs (12.2 – 14.9N-m)
E| Power Button| Power Button with Status Light
F| Vent| Pressure Balancing Vent
G| DC Circuit Breaker| Auxiliary DC Circuit Breaker for UL Compliance
H| Accessory Harness| Enables Integration of FCC, Remote Power Button,
and Auxiliary DC Breaker
- Parts included with UL system only
First Power-up
The battery needs to be fully charged to 14.4V to condition the battery for
use. Fully charging the battery calibrates the state-of-charge percentage to
be the most accurate and allows the cells to balance if necessary. The battery
should be fully charged to 14.4V at least once every 2 weeks.
Operation
Before powering on, ensure the battery terminals are insulated and any
connected devices are properly fused. Due to shipping laws and regulations,
your battery may be received at a partial state-of-charge (typically 50%). The
battery needs to be fully charged before use. This is necessary to calibrate
the state-of-charge meter.
Powering the Battery On The power button is located on the battery lid
and/or on the remote accessory harness extension. To turn the battery on,
press the power button for one second. The power button status light will
illuminate solid on to confirm the battery is powered on and operating
normally.
Powering the Battery Off Be sure to shut down any high amperage loads
prior to turning the battery off. To turn the battery off, press and hold the
power button for 3 seconds. The power button status light will turn off to
confirm that battery power is off.
Resetting Power after a Protection Event If the battery detects a fault
then it may turn power off. The battery can then be reset by pressing the
power button for one second.
Discharging Discharging may be performed at any time the system is
powered On. The NeverDie® feature allows the system to have a “reserve”
amount of energy left in the battery. Once the system is discharged to
approximately 12.0V or 10% state-of-charge, whichever comes first, power will
be off to leave a “reserve” amount of energy still left in the battery. The
battery will also disconnect power if the voltage, amperage, or temperature
limits are exceeded during discharging. To enable the remaining reserve energy
of the system, press the BMS power button for 1 second. Once the reserve range
is enabled the battery should be charged as soon as possible. See page 9 BMS
Functions for further details.
WARNING
If the reserve energy is used and the battery module is left in a deeply
discharged state without immediate charging, the battery module may become
permanently damaged.
Charging The charging device(s) connected to the Lithium Battery System
must be programmed per the recommended charge settings below. Using an
improper charger or charge settings could result in undesirable battery
performance and accelerated wear. The battery will disconnect power if the
voltage, amperage, or temperature limits are exceeded during charging. Please
note that voltage rise during bulk charge stage is very slow, followed by a
fast voltage rise at the end of charge. Once charge is completed, the voltage
drops down to a resting level. This behavior is normal and should not cause
any concerns.
Recommended Charge Settings
Recommended Bulk Charging Voltage| 14.4V
Recommended Absorb Charging Voltage| 14.4V
Recommended Absorb Cycle Time| 30 Minutes
Maximum Absorb Cycle Time| 60 Minutes
Recommend Float Voltage| 13.4V
Maximum Float Voltage| 13.6V
Equalization Mode| Disabled
Temperature Compensation| Disabled
A lithium iron phosphate (described as LFP or LiFePO4) charger or charging
profile is required for battery charging. The battery charge voltage should be
set to 14.4V, equalization and temperature compensation must be disabled, and
if the charger supports float mode, set it to 13.4 – 13.6V. If you are not
sure if your charger is suitable for charging your battery, contact Lithionics
Battery® or your dealer to confirm charger compatibility, or to purchase
compatible charger.
NOTE
Due to partial state-of-charge during storage and shipping, the cells
inside the battery may not be perfectly balanced during the first few charge
cycles. You may observe some high voltage alerts and cell balancing status
codes on the Lithionics Battery® Monitor app, which indicate the balancing
process is in progress. This is perfectly normal behavior and should not cause
any concerns. After a few full charge cycles the cells will balance out and
these alerts will disappear. There is no adverse effect on battery operation,
you may continue to use the battery normally during these initial charge
cycles.
Power Button with Status Light The BMS power button is located on the
battery lid and includes a status light. You can also attach the optional
remote power button via the accessory harness. This can be useful if the
battery is installed in a location that is not easily accessible. The function
and operation of the remote power button remains the same as the main power
button on the battery.
Power Button Operation
Power ON| Press for 1 Second
Power OFF| Press for 3 Seconds
Power Reset| Press for 1 Second (after protection event)
Refer to the table below for an explanation of the power button status light blink patterns.
Battery State| Status Light| Status Light
pattern over time
---|---|---
Powered On| Solid ON|
Powered Off| Solid OFF|
Charging| Slow blink| | | | | | | |
Low Battery| Short blink| | | |
Fault Alarm| Rapid blink| | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | |
| < 1 second >| < 1 second >| < 1 second >| < 1 second >
Maintenance and Storage
Maintenance For optimal performance when in use, the battery should be
fully charged to 14.4V at least once every 2 weeks. Fully charging the battery
calibrates the state-of-charge percentage to be the most accurate and allows
the cells to balance if necessary.
Storage Storing your battery at the correct specifications is important
as it keeps the battery in the healthiest state possible. Consult the table
below for proper storage conditions.
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
Long Term Storage| If the battery needs to be stored for > 3 months the
voltage should be 13.2V (50% state-of-charge) and stored at the recommended
storage specifications shown above. Additionally, the battery needs at least
one charge & discharge cycle every six months.
Self-Discharge Rate| ≤3% per month
Typical storage example < 1 month:
- Fully charge the battery.
- Turn the battery OFF using the battery power button.
- Keep the battery in an environment according to the specifications shown above.
Typical storage example > 1 month, up to 3 months maximum:
- Reduce the battery state-of-charge to 13.2V which is 50% ±10% state-of-charge.
- Turn the battery OFF via the BMS power button.
- Keep the battery in an environment according to the specifications shown above.
- Every 3 months charge the battery to 100% state-of-charge, then discharge the battery to LVC, then charge it back to 50% ±10%state-of-charge.
Bluetooth App
Lithionics Battery® has developed the Lithionics Battery® Monitor app for iOS
and Android mobile platforms, which displays real time battery information.
The battery must be turned on via the Power button before the Bluetooth
connection can be made. When the battery is turned off, Bluetooth is also
powered off to save energy. This app can be downloaded for free on the Apple
App Store or the Google Play Store for your iOS 12.4+ or Android 5.0+ device.
To connect Bluetooth:
- The battery must be in the ON position.
- Bluetooth must be enabled on your device.
- Open the Lithionics Battery® Monitor App and accept location permissions.
- Under the Device List, select the battery you would like to monitor (the device name is identified by the battery serial number).
Once the Bluetooth connection is made to the battery, the Battery Info section
of the app automatically displays. This section provides useful info such as
the battery state-of-charge percentage, voltage, current, power, internal cell
temperature, BMS temperature, power state and estimated time remaining.
Clicking on the Status Code at the bottom automatically opens the Status Code
reader section.
Shown Above: Swiping left on the
Battery Info section brings the details screen into view. 
The Status Code Reader section of the app makes it easy to
visualize the status by observing the color-coded table, see example to the
left. Each active description is color coded in green or red, where green
indicates information and red indicates faults or critical conditions
requiring attention, such as immediate need to charge the battery.
The Bluetooth app can also be used to access the Firmware Update section of
the app. The BMS firmware version and update status can be found in the
settings menu when connected to the Battery.
NOTE
The firmware update should only be performed if necessary.
Additionally, the app provides automatic data logging when
connected to the battery. The log files can be found under the settings menu
and can be easily shared from the app for troubleshooting or analyzing battery
history. 
Additional Bluetooth App
Information
- For more details on the Lithionics Battery® Monitor App: Lithionics Battery® Bluetooth® App Guide
- YouTube video: Lithionics Battery Monitor App Demo
- For technical requirements and troubleshooting: Lithionics Battery® Bluetooth® Connectivity Support
Accessory Connector
The battery accessory connector is located on the battery lid and is used to access the BMS’s ported features. This allows implementation of the features listed below.
Feature Description
FCC|
Field Control Circuit – For use with an alternator regulator enable/disable circuit.
Auxiliary DC Breaker| For use with the UL Auxiliary DC Circuit Breaker
Remote Reset Button| For use with the Remote Power Button with Status
Light
Mating cable extensions are
available to integrate the accessory features.
Part Number Feature Description
75-149-180| FCC Extension| Dual Weatherpack Connector to Bare Wires,
15ft Length
75-224-196| Remote Power Button with Status Light| M8 Connector to
Illuminated Remote Button, 16ft Length
Accessory Connector Pinout
Pin Description
1| Reset Button 1
2| Remote LED +
3| Aux DC Breaker 1
4| Remote LED –
5| Aux DC Breaker 2
6| Reset Button 2
7| FCC 1
8| FCC 2
Internal Heater Kit
The GTX12V320A-E2107-CS200 battery includes a thermostatically controlled heater kit to internally warm and maintain the battery above 32F/0C. Keeping the battery’s internal temperature above 32F/0C ensures uninterrupted battery power and a longer battery life.
| Ambient Temperature | Average Power Used | Average Usage per Day |
|---|---|---|
| 20F/-7C | 9W | 16.9Ah |
| -4F/-20C | 21W | 39.4Ah |
NOTE
The internal heater kit will not activate if the battery is OFF.
Auxiliary DC Breaker
When the Auxiliary DC Breaker is installed with the GTX12V320A-E2107-CS200
battery, the system qualifies as a UL1973 Listed system. UL1973 Listing
represents a high degree of safety tested by Underwriter Laboratories. The
battery operates by using the Auxiliary DC Breaker as a redundant disconnect
device if the battery must be isolated from its loads. The Auxiliary DC
Breaker also replaces the need for a fuse and can serve as a manual disconnect
for storage and maintenance via its toggle switch. The required DC breaker
model is the Sensata Circuit Breaker #JLE-1-41340-250. The 2 control wires for
this feature are wired through the battery accessory connector.
OptoLoop®+ Data Connector
The battery CANBus data can be accessed via the M12 8-pin circular OptoLoop®+
connector located on the battery lid. This data can be used to control
compatible charging devices or to monitor battery telemetry via compatible
displays or hardware. The CANBus messages are formatted for compatibility with
RV-C protocol. The CANBus protocol and supported messages are documented and
can be found at www.lithionicsbattery.com/user-
guides.
Please contact Lithionics Battery® regarding options for mating CANBus or
OptoLoop®+ connections.
M12 CANBus Connector Pinout
| Pin | Description |
|---|---|
| 1 | N/A |
| 2 | N/A |
| 3 | PWR+ (12V nominal) |
| 4 | CAN-High |
| 5 | CAN-Low |
| 6 | PWR- (CAN GND) |
| 7 | N/A |
| 8 | N/A |
BMS Functions
Below is a detailed description of advanced BMS features and how they affect the state of the battery.
- Power On/Off – In addition to the automatic disconnect protections, the battery can be manually turned off to disconnect power at the terminals during installation, service, or storage.
- Reserve Voltage Cutoff (RVC) – D uring discharge, the BMS will disable discharge current at approximately 10% state-of-charge, or when any cell reaches 3.0V (approximately 12.0V total voltage). This allows the battery to store a small energy reserve. Once the battery is in the RVC state you can use the reserve energy by a short-press of the power button.
- It is recommended to charge the battery soon once it reaches RVC.
- The battery will fully power off if it is not charged after sitting for 72 hours to further conserve its energy.
- Low Voltage Cutoff (LVC) – During discharge, the BMS will disable discharge current when any cell reaches 2.7V (approximately 10.8V total voltage). Charging current is allowed, so that the battery can still be charged by a charging source. Some charging sources require to “see” the battery voltage before allowing charging, in which case LVC lockout can be temporarily overridden by short-pressing the Power button. This will allow the charger to sense the battery voltage, so charging can begin.
- It is recommended to charge the battery immediately once it reaches LVC.
- The battery will fully power off if it is not charged after sitting 12 hours to further conserve its energy.
- High Voltage Cutoff (HVC) – During charging, the BMS will disable charge current if any cell reaches 3.70V or higher (approximately 14.8V total voltage). This should not happen during normal operation if the charging sources are setup with correct charge settings. Once the charge current is removed the battery voltage will slowly lower and the BMS will automatically disengage HVC.
- Cell Temperature Based Cutoff – When the internal battery temperature goes below or above the temperature limits the BMS will disable charge or discharge current to prevent further use of the battery until the temperature returns to safe operating limits. Different temperature limits are enforced for charging and discharging due to the nature of LiFePO4 chemistry. Please see the specifications table below for temperature limits.
- BMS Temperature Based Cutoff – When the BMS temperature goes above 179.6°F (82°C) the BMS will disable charge and discharge current to prevent further use of the battery until the temperature lowers to below 158°F (70°C).
- Over Current Protection – The BMS will disable discharge or charge current if the amperage exceeds 250A for 2 minutes continuously. To restore normal operation, remove/address the source of the overload, then short-press the Power Button.
- Short Circuit Protection – The BMS will immediately disable discharge current if the current value exceeds 1200A. To restore normal operation, remove/address the source of the short circuit, then short-press the Power Button.
NOTE
The lithium battery is capable of significant power output and may maintain
the voltage level during a short circuit event, producing a very large current
capable of melting or welding connection points and damaging cables and
connectors. Even when the BMS detects the short circuit and tries to protect,
the BMS may be damaged under such a large current. Make sure that the battery
connection is always properly fused and does not rely on the BMS alone for
short circuit protection!
- Internal Heater Kit – The internal heater kit will warm the battery when the cell temperature is 37.4°F (3°C) and lower and will stop heating when the cell temperature is 41°F (5°C) and higher.
Specifications
| Item | Description |
|---|---|
| Model | GTX12V320A-E2107-CS200-UL |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 320Ah |
| Nominal Watt Hours | 4096 |
| Internal Resistance | ≤3mΩ |
| Features | NeverDie® Reserve, High and Low Voltage Cutoff, High and Low |
Temperature Cutoff, Short Circuit Protection, Bluetooth Telemetry, UL
Auxiliary DC Breaker Support
NOTE: Battery may not be connected in series to make 24 volts or higher.
Charge
Charging temperature range| 32~131°F (0~55°C)
Recommend Charge voltage| 14.4V
Recommended float charge voltage (for standby use)| 13.4V
Recommended charge current| ≤150A
Allowed max charge current| 200A with starting temp of 77°F (25°C)
Discharge
Discharging temperature range| -4~131°F (-20~55°C)
Output Voltage Range| 10.8~14.6V
Recommended discharge current| ≤150A
Max continuous discharge current| 230A with starting temp of 77°F (25°C)
Surge discharge current| <600A for 30s max with starting temp of 77°F (25°C)
Pulse discharge current| <1200A for 1s max with starting temp of 77°F (25°C)
Reserve cut-off voltage| 12.0V±0.05V
Discharge cut-off voltage| 10.8±0.1V
Mechanical Characteristics
Dimensions| Length: 20.3in (516mm)
Width: 6.4in (163mm)
Height: 10.0in (254mm)
Mounting Orientation| Upright position only (terminals up)
Weight| Approx. 68lbs (30.8Kg)
Environmental Rating| IP66
Troubleshooting & FAQ
When troubleshooting your battery, one of the most helpful tools is the battery Status Code feature of the Lithionics Battery Monitor App. If the battery shuts down due to a protective BMS feature, please have the Bluetooth app available when resetting the battery to identify the battery info and status code. It can be helpful to screenshot the battery info screen, which will identify the battery state-of-charge, voltage, current, temperature, and status code. The following status code descriptions can be used in correcting the battery fault condition.
Description of Status Codes in the Lithionics Battery Monitor App
High Voltage State| The battery’s voltage is too high, typically 14.8V
(3.70V per cell).
Cell Temp High/Low| The battery’s internal temperature is outside of the
operating limits.
NeverDie® Reserve| The battery is in the NeverDie® Reserve State,
allowing access to reserve energy.
BMS Temp High| The temperature of the BMS is too high, typically due to
high charge or discharge current.
Reserve Range| The battery’s voltage is low (below 12.0V and/or 10%) and
should be charged soon.
Low Voltage State| The battery’s voltage is very low (below 10.8V) and
should be charged immediately.
Battery Overload| The charge or discharge current is over 250A and power
will be turned off after 2 minutes.
Power Off State| The battery was turned off by the Power Button.
Overcurrent State| The discharge current has exceeded 600A, and power is
now turned off.
Short Circuit Protection| The discharge current has exceeded 1200A, and
power is now turned off.
Cell Over-Voltage| One of the battery’s cell voltages is too high.
Cell Under-Voltage| One of the battery’s cell voltages is too low.
BMS fault| A BMS fault is present.
Cell 1 Balancing| Cell 1 is balancing.
Cell 2 Balancing| Cell 2 is balancing.
Cell 3 Balancing| Cell 3 is balancing.
Cell 4 Balancing| Cell 4 is balancing.
Frequently Asked Questions
-
The battery has been charging for a long time, why has it not reached 100%?
Depending on the charger output, charging could take several hours to complete. To confirm the battery is charging, check the Bluetooth app to verify positive current is going into the battery. The voltage rise during bulk charge stage is very slow, followed by a fast voltage rise at the end of charge to 14.4V. Once the battery reaches 14.4V, the State-of-Charge percentage will calibrate to 100%. If no current is measured, confirm the charger is powered on, programmed correctly, and there are no DC breakers or disconnect switches preventing power from transferring. -
The battery is at 100%, why is it still charging?
It is normal for the charger to finish the charging cycle for a short period of time after the State-of-Charge percentage calibrates to 100%. A 30-60 minute absorb cycle is recommended as the battery finishes charging and the charging current reduced. The charger should then switch to a float charging mode at the battery resting voltage. -
I have lost battery power, why did the battery turn off?
The battery has many automatic protections that could cause the battery to turn off. Most commonly, the battery will turn off once you reach the 10% reserve range and just needs to be recharged. Using the Bluetooth app and Status Code can provide you with helpful information for troubleshooting. -
Why is the battery status light flashing?
The LED flash pattern can indicate if the battery is being charged, in a low voltage state, or experiencing a fault condition. Reference the chart on page 5 for the status light pattern descriptions.
Contact Information
For technical or warranty support please first contact the dealer where the
system was purchased. Additionally, for factory support please send an email
with your battery’s serial number to
Support@LithionicsBattery.com
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>