sales@earthxbatteries.com :: USA Toll Free 844.220.6230 :: 970.674.8884 :: 8-5 M-F Mountain Time ::

EarthX Lithium Batteries – OEM LIthium  Batteries for All Motor Sports
What Type of Vehicle Do You Need a Battery For?
Certified Aircraft
Experimental Aircraft
Motorcycles
ATV Vehicles
Race Cars
UTV / Side-by-Side Utility Vehicles
Snowmobiles
Custom Battery Application
  • About EarthX
    • EarthX Lithium Batteries
    • Lithium Battery Technology
    • Other Interesting Facts
  • Products
    • By Vehicle Type
      • ATV Vehicles
      • Experimental Aircraft
      • Motorcycle
      • Race Cars
      • Moped Vespa Scooters
      • Snowmobile
    • Accessories
      • Cables
      • Cases
      • Chargers
      • Jump Pack
      • LED Lights
      • Terminal Adapters
      • Vent
    • List of EarthX Lithium Batteries
  • Battery Charging
  • Authorized Resellers
  • News
  • Documentation / FAQs
    • Our Brochure
    • Fact Sheets
      • Engine Charging Systems
      • SLA vs Lithium
      • Series Parallel Operation
      • Dual Bus Lithium Battery Design
      • DO-311 Index of Tests
      • Heat in the Engine Compartment
      • Lithium Battery Start of Season Guidelines
    • FAQs
    • Manuals
      • ETX Battery Manual (PDF)
      • Jump Pack Manual (PDF)
      • ETX Battery Box Installation Guide
    • Service Bulletins
      • Applies to ETX900-TSO
    • MSDS
    • Magazine Articles
    • Video Library
  • Customer Service
    • Warranty Submission
    • Shipping & Returns
    • Testimonials
  • Contact
    • Sponsorship Programs
    • Dealer Application
    • Dealer Resources
Back to top

EarthX Lithium Battery Charging

EarthX lithium batteries can sit on the shelf for up to a year without the need to charge it  due to the low self discharge rate which is about 2% a month, compared to a lead acid battery which is approximately 30% per month. (If you have the battery in a vehicle that has a constant draw, such as a Harley, and you don’t ride for a month, you will need to put the battery on a charger). After a long time of no use, it is wise to check the voltage and if it is less than 13.28V, you should charge it before start attempt. Do not leave a battery, lead acid or lithium in a discharged state or the cells will be permanently damaged. Charge immediately if this happens.

Click here for maintenance and start up guidelines

In the event you have to charge the battery, use a Lithium (LiFePO4) battery charger or if you use a lead acid charger, it must be:

  1. A smart lead-acid battery charger that is not older than 10 years old (as older chargers have crude voltage regulation)
  2. Does not charge above 14.6V.
  3. Will automatically turns off when the battery is fully charged (based on volts).
  4. Does not have a de-sulfate mode/deep conditioning mode/pulse mode (these can all mean the same thing, it just depends on your charger manufacturer the terminology they choose). Do not use any charger with voltage that pulses above 15V! This will damage the battery. If in doubt, consult the manual that comes with your charger.

For chargers with a maintenance mode, the maintenance mode voltage should be 13.3V – 13.9V. Please read the manual that comes with your charger.

IF YOUR BATTERY IS AT ZERO VOLTS:

EarthX lithium batteries have over discharge protection via an internal Battery Management System (BMS) to disconnect the battery from the active load (your vehicle) to protect the cells from damage when it is 95-98% drained. If you left your lights on, key on, have a faulty stator, or have a parasitic drain this can easily happen.  When the battery is “disconnected”, there is no voltage at the battery terminal. Note, some volt-meters may read a small voltage. If you have an EarthX battery (2017+ model year), the over-discharge protection circuit will automatically reconnect when you remove the negative battery cable connected to the battery (referred to as BMS Reset). If below 10.5V, it is possible the battery (or cell) is damaged. Only use the EarthX approved Optimate charger to slowly recharge the battery from this over-discharged state. Do not force the battery to accept a charge as it can be dangerous and result in cell rupture, release of flammable vapors, smoke and or fire. If above 10.5V, proceed to step #1.

If you are unsure of the age of your battery, on the backside of the negative terminal is a letter and a number. If you have a #2, 3, 4, 5,or 6, you do not have the automatic reconnect feature. Go to step #2 below.

  1. Using a charger that is compatible with Lithium Iron Phosphate batteries, simply connect and charge it.
  2. If the number on the backside of the negative terminal is in the range of 2-6, remove the battery from the vehicle,  connect your compatible charger, then put either a jump pack or another 12V charged battery in parallel with the EarthX battery so the charger will read it’s voltage and engage. This will reconnect the circuit inside. If you  have a voltage reading of 0-10.5V after reconnecting the circuit, the battery might be permanently damaged and should not be charged.  Once the charger sees voltage it begins to charge as normal.  After 5-20 seconds you can remove the jump pack or jumper cables (being careful not to disconnect the charger). Recharging this battery from the depleted state can take from a couple hours to overnight.
  3. If the battery will not reset and charge after attempting either 1 or 2 above, you could have a damaged cell so do not continue to attempt to use or charge the battery. Do not attempt to charge a battery that is swollen in appearance. Do not attempt to jump start a battery that is swollen in appearance.

The table below shows a list of chargers that are safe to use (or not) with BMS reset (or not). This is not an all inclusive list.  We recommend the Optimate lithium chargers, TM-291, TM-275 for the 13.2V batteries or the TM-281 for the 26.4V batteries as they are designed to charge, maintain, and reset your battery if needed and have been designed to work with the EarthX brand of batteries.

Manufacturer

Model

Safe to use

BMS Reset

Suggested Use

ACI

1206S60CC

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Adventure Power

1000, 2000, 4000 models

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

Battery Minder

Any model

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Black N Decker

Any models

No

No

Per the manufacturer, they state it is not safe to charge a lithium battery with any of their models

Christie

All Models

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

CTEC

Lithium US

Yes

Yes

Use as charger, maintainer and it will reset EarthX’s BMS over-discharge protection

CTEC

All lead acid charger models

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Deltran

Battery Tender Jr

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

Deltran

Battery Tender (original or Plus)

Yes

No

Can be used for charging only.  Maintenance voltage is too low.

Diehard

All Models

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Duraboost

Duraboost 750, 1000

Yes

No

Can be used for charging. Can not find a maintenance voltage in manual so if it is less than 13.3V, too low.

Duracell

Duracell Ultra SLC10002

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

H-D (Harley Davidson)

Tender Jr

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

Moose

Tender Jr

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

MotoMaster 10/2A Automatic Charger

10/2A Automatic

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

Napa

All models

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

NOCO Genius

All Models except the lithium specific one

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Noco Genius Lithium

Noco Genius Lithium

Yes

No

Use as charger, maintainer, but will not reset EarthX’s BMS over-discharge protection

ODYSSEY

Ultimizer

Yes

No

Use as charger and maintainer

Optima

400 or Digital 1200

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Pulsetech

Xtreme XC100

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Power Pulse

PP-12-L

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Schauer

Charge Master CM6A, CM12A

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Schauer

JAC0512,1212, 2512

Yes

No

Use as charger, maintainer

Schumacher

Any lead acid model

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

 

TecMate/ Optimate

Lithium TM-471, TM-290, TM-291, TM-271, TM-485

Yes

Yes

Use as charger, maintainer and it will reset EarthX’s BMS over-discharge protection

TecMate/Optimate

All lead acid charger models

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Tenergy

4cell LiFePO4 Smart Charger

Yes

Yes

Use as charger, maintainer and it will reset EarthX’s BMS over-discharge protection

Yuasa

Smart Shot 900

Yes

No

Can be used for charging. Can not find a maintenance voltage in manual so if it is less than 13.8V, too low.

Yuasa

Smart Shot 1.5mA

No

No

Do not use, as full time de-sulfating mode will damage a lithium battery

Note: is not an all-inclusive list

As with any battery you are charging, follow these safety tips:

Safety Tips:

  • Never leave the battery unattended when recharging it.
  • When charging a battery, place it on a non-flammable, and remove any flammable items nearby.
  • Unplug chargers always after the battery reaches full charge.
  • Disconnect chargers from electrical outlets when these are not in use.
Need a Charger?
  • TM-291 5 amp Lithium (LifePo4) Battery Charger/Maintainer

    $129.90

    FREE SHIPPING IN THE USA!

    The Optimate TM-291 Lithium charger will charge and maintain your lithium battery with 5 amps of energy so your battery is ready to go when you are!  If you want a faster charger, there is also the 9.5 amp version below that also has a “tune” or  power source mode of delivering 8 continuous amps of energy so you can program your EFIS or retune your car, click below if you want those features for an additional $40.

    https://earthxbatteries.com/product-category/accessories

     

    To reset an EarthX battery that is in the over discharge protection mode, connect alligator clips FIRST, and then plug unit into the wall. You will see the lights go to the save mode.

    Add to cart
  • TM-275 13.2V 9.5Amp Lithium (LiFeP04) Battery Charger/Maintainer/Power Supply

    $168.89

    FREE SHIPPING IN THE USA! 

    This Optimate Lithium charger will quickly charge your battery,  maintain it at the optimal voltage so it is ready to go when you are,  but also has a very cool feature of being a power source of 8 continuous amps! For example, you can use it as power supply while programming your aircraft EFIS, or supply power to your car while retuning it.

    • CHARGER
    • MAINTAINER
    • POWER SUPPLY

     

    Add to cart
  • 24V Optimate TM-281 (LifePo4) Battery Charger/Maintainer/Power Supply

    $168.89

    FREE SHIPPING IN THE USA!

    The Optimate TM-281 24V Lithium battery charger will charge and maintain your lithium battery with 5 amps of energy so your battery is ready to go when you are! This lithium charger also has a “tune” or  power source mode of delivering 4 continuous amps of energy so you can program your EFIS or retune your car plus a pushbutton activated BMS “wake up” mode to safely wake up a battery out of sleep mode.

    • Lithium Battery Charger
    • Lithium Battery Maintainer
    • Power Supply
    Add to cart

Cart

  • This field is for validation purposes and should be left unchanged.

Click here for Maintenance & Instructions for Continued Airworthiness manual

Click here for Install and Maintenance Manual ETX900-TSO

Download/View Our Manual

View Our Accessories

Information

  • Manual
  • Warranty Submission

© 2013 - 2020 EarthX Batteries . All Rights Reserved. | Privacy Policy | Terms & Conditions
Hosted and designed by anARTIST unleashed

EarthX, Inc., 955 Merchant Ct., Windsor, CO 80550
sales@earthxbatteries.com • USA Toll Free 844.220.6230 • 970.674.8884

Use discount code CJP10 to get $10 off a Charger when purchased with an EarthX Battery. Dismiss