EarthX ETX18B Lithium Battery
Item #: LTX18B   |    In Stock

EarthX ETX18B Lithium Battery
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EarthX ETX18B Lithium Battery

Item #: LTX18B   |  In Stock

Price: $229.00
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Price: $229.00

Best Value
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2 Year Factory Direct Warranty
Brand New
100% Compatibility
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Product Specifications for EarthX ETX18B Lithium Battery

BM Part #: LTX18B
Voltage: 13.2 Volt
Capacity: 18 Ah Equivalent (6.2 Ah Actual)
Type: LiFePO4
Length: 5.3"
Width: 2.6"
Height: 4.1"
Cold Cranking Amps: 230 CCA / 340 PCA
Shipping Weight: 2.20Lbs
Warranty: 2 Year Factory Direct
Product Manual: Download
Datasheet: Download
  • Due to shipping regulations regarding shipping lithium batteries, the EarthX batteries can only be shipped via FedEX or UPS Ground.
  • Includes terminal adapter kit (Item # MB-ADAPTER)
  • Extremely light weight, 70-80% lighter than lead acid batteries.
  • Very low self-discharge rate, it can hold a charge for the entire off-season (over six months) except in bikes with continuous draws such as a Harley.
  • Environmentally friendly, no hazardous lead or acid, non poisonous, non-toxic.
  • 4,000 charge cycle life versus 350 charge cycle life of a lead acid battery. Can last up to eight years!
  • Maintenance free.
  • Fast charging (as little as 30 minutes).
  • Higher voltage while cranking means faster starts.
  • Wide operating temperature range, will not freeze or boil-over.

Product Description

Free Standard Shipping!

Order today and receive free standard shipping on your EarthX ETX18B Lithium Battery. Only valid in the contiguous 48 states and not valid with any other offer.

Engineered and assembled in the U.S.A.

EarthX Lithium batteries, Lithium Iron Phosphate (LiFePO4), are designed to be a light-weight, maintenance free replacement of your standard lead-acid battery. These batteries will work with all vehicle charging systems and "modern" lead-acid battery chargers, thanks to the exclusive built-in electronics (Battery Management System, BMS). No other motorsport lithium battery offers built-in electronics which protect it from over-discharging or over-charging while keeping the cell's charge level balanced.

EarthX batteries are an exceptional value given the fact they can last four times longer than your conventional lead-acid battery, lasting up to 8 years. The battery includes a full 2 year warranty (not prorated like others). Your satisfaction is 100% guaranteed with EarthX's Factory Direct warranty!

What Makes EarthX Different?

  • Built-in circuitry (Battery Management System, BMS) to ensure the charge levels are equally balanced 100% of the time for optimal performance and life.
  • Built-in circuitry to protect from over-charging and over-discharging
  • No special cell balancing charger needed due to our built-in BMS.
  • Custom designed cells for maximum cranking amps, lightest on the market and up to an 8 year life span.
  • Cranking amps are rated using an American standard (SAE), not a Chinese standard so our CCA rating is equivalent to existing lead acid batteries.
  • Torture tested to extreme temperatures (-22F to 140F) and vibration (2G 25hz).

What's the difference between the "equivalent" and "Actual" amp hour capacity?

The manufacturer includes the "equivalent" rating to show a more apples-to-apples comparison between the lithium chemistry and the lead-acid battery that you're likely replacing.

In performance and real life usability for lead acid starting batteries, they only use ~30% of the stated amp hours before the voltage drops so low you can not start your vehicle. Lithium batteries, however, have a 98% depth of discharge.

For example, the EarthX ETX36 is a replacement for a YTX20 battery, which has 18ah capacity. The amount of useable amp hours are [18ah x 0.3 = 5.4ah]. The ETX36 uses a 12.4ah lithium cell which is actually 7 amp hours more than the lead acid battery it's replacing.

Cross Reference

The EarthX ETX18B Lithium Battery has been cross-referenced to be compatible with or replace these OEM part numbers and models:

Customer Reviews

5 Reviews | 5.0 out of 5
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Would recommend this product.
What our Customers are saying
Lithium Gel Battery
August 7, 2019
by on August 7, 2019

Product is great. It's light and compact and very powerful. Started my 1850 V-twin Roadliner up very easily. They give you spacer cushions if you are replacing a leaf acid battery. Would definitely but from Battery Mart again.

Would recommend to a friend?
Better Battery
December 7, 2018
by on December 7, 2018

I upgraded from a Shorai battery to the EarthX after years of weak starting in cold weather. I've only had it installed for a week but used it at about 40 deg F. and have been pleased with its performance. I'm also looking forward to its internal cell maintenance. My old battery required a special charger and procedure to balance cell charge.

Would recommend to a friend?
Great Battery
August 14, 2018
by on August 14, 2018

Cranks my Formula Vee very well, and saved me 13 pounds over my previous battery.

Would recommend to a friend?
2004 monster 996s4r never started so well this battery is super. earthx ETX 18B lithium battery
May 17, 2017
by on May 17, 2017

granted it is new ,we will see in a couple of years,keeping my fingers crossed john m

john mastrobuono
cranston rhode island
Would recommend to a friend?
What can I say?
February 25, 2016
by on February 25, 2016

This may very well be the lightest battery in the world ? I use the battery to power my Lowrance hds gen 3 fish finder on my kayak . The power draw is less than 1 amp per hour and since this battery is 18 amp equivalent , I should have no problems running the meter all day . Since the battery is new, I really can not comment on the life cycle . I will be putting the battery through constant discharging and recharging , and the manufacturer is claiming that it is superb in this category . The fact that the battery is so super light really pleases me , because it allows me to keep the overall weight of the kayak low . Less weight = more speed , and less fatigue throughout the day . I have another lightweight battery from different a manufacturer that is 15 amps and weighs almost double of this battery . Would I recommend the use of this product ? Yes . In time we will see how it fairs under the extreme torture I will be putting it under . I sold my high performance bike , but this would be a great product for someone trying to shave weight.

Would recommend to a friend?