Shorai LFX21L6-BS12 Lithium-Iron Battery
Item #: LFX21L6-BS12   |    Backordered: Available February 15th, 2022

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Shorai LFX21L6-BS12 Lithium-Iron Battery

Item #: LFX21L6-BS12   |  Backordered: Available February 15th, 2022

Today's Price: $218.95
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Price: $218.95


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Product Specifications for Shorai LFX21L6-BS12 Lithium-Iron Battery

Specifications:
BM Part #: LFX21L6-BS12
Battery Polarity: Right Positive Terminals
Voltage: 12 Volt
Capacity: 7 Ah (21 Ah Equivalent)
Type: Lithium Iron
Length: 5.83"
Width: 3.23"
Height: 5.51"
Cold Cranking Amps: 315 CCA
Shipping Weight: 3.03Lbs
Warranty: 1 Year Free | 5 Year Prorated Factory Direct
Features:
  • Ultra light - The cheapest way to shave pounds off your racing motorcycle
  • Twice to four times the service life of lead-acid batteries
  • Fitted replacement for your OEM battery
  • Military spec Carbon Fiber Composite Case
  • Faster cranking for better starts
  • Super-fast recharge rate
  • SAFE! No explosive gasses during charge, no lead, no acid
  • Environmentally friendly
  • Bolt Size: 10mm bolt with 5mm threads.
Frequently Bought Together:
Buy Together and Save
Shorai LFX21L6-BS12 Lithium-Iron Battery
$218.95
+
Shorai Battery Charger for 6 Volt and 12 Volt LFX Batteries
$94.95
Order Today and get Free Shipping!
Total for Both Items: $313.90

Product Description

Free Standard Shipping!

Order today and receive free standard shipping on your Shorai LFX21L6-BS12 Lithium-Iron Battery. Only valid in the contiguous 48 states and not valid with any other offer.

Shorai's Lithium Iron batteries are the ultimate fusion of light weight and power technologies. The LFX21L6-BS12 battery weighs in at 3.03 pounds and offers 315 CCA. These batteries will require no change to your charging systems and are a drop-in replacement for your original battery (Included shims may be required for installation).

What makes Shorai batteries different? They contain Shorai-proprietary eXtreme-Rate Lithium Iron prismatic cells (chemistry LiFEPO4). They contain no poisonous lead, no dangerous acid, and do not create explosive gases during charge, as traditional Lead-Acid batteries do. Compared to traditional batteries, Shorai lithium batteries are extremely light, have much lower self-discharge rate, do not sulfate, and are environmentally friendly.

Can I use Lead-Acid battery chargers or charger/tenders?
Yes. HOWEVER, you may NOT use a charger/tender if it has an automatic desulfation mode, which cannot be turned off. We have confirmed with Deltran, makers of the Battery Tender brand, that their products do NOT have a desulfation mode, and are therefore OK for use with Shorai batteries.

Can Shorai LFX be mounted in any position?
Yes. There are no liquids in these batteries.

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

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

The lead-acid capacity rating itself is based on a complete discharge at a low discharge rate. Under actual cranking conditions they will deliver considerably less than spec capacity. And because lead-acid batteries begin sulfating when only a small percentage of the capacity has been used, and their internal resistance rises as they are discharged, the actual capacity which can be used may be as little as 20% of the mfg. rating. Discharge in excess will not only damage the lead-acid battery, it may not allow proper starting as voltage sags.

For example, the Shorai LFX18 12V series have 6Ah cells internally. But, the cells are capable of 80% discharge without damage while still retaining more cranking power. As such, the usable capacity (or "reserve capacity") of an LFX18 12V battery is very close to 18Ah-rated lead acid batteries, while also providing superior cranking and huge weight reductions.

Cold Weather Performance Expectations

Down to about 20° Fahrenheit (-7°C) most users find that they can start normally on first crank. If your headlight comes on at key-ON, it is good for the batteries to flow some current before cranking in cold weather. The suggested headlight-on time before cranking depends on the temperature. If starting at 40°F/5°C, 30 seconds will help wake the battery and increase cranking performance. If at 0°F/-17°C, leave the lights on for 4~5 minutes before cranking. The result will be a better first crank, and longer battery life. If the engine fails to start on first crank, that first crank has warmed the battery, and the second attempt will be much stronger. Other accessories that can be turned on before cranking can also be used for this purpose, such as heated gear, radio, etc... Insuring that the battery is fully charged after storage also improves first-start performance in cold weather.

Customer Reviews

4 Reviews | 4.5 out of 5
5 stars (3)
4 stars (0)
3 stars (1)
2 stars (0)
1 star (0)
100%
Would recommend this product.
What our Customers are saying
Shorai LFX21L6-BS12 Lithium-Iron Battery
November 16, 2021
by on November 16, 2021

I wasn't so sure about this battery but finally decided to buy it. I am glad I did for one thing it is so much lighter than my old battery. My old battery I had to use both hands to put it in my motorcycle. With this battery I only had to use one hand because it is so light and easy to adjust. The other thing is it turns over my motorcycle much quicker. As of now I have no problems. The only thing I can say against it is you have to have the Shorai battery charger in order to charge it. Just can't use any battery tender for this battery. I bought the Shorai battery charger along with this Shorai Battery and I have not been disapointed in doing so.

Carl
Arizona
Would recommend to a friend?
Yes
SHORAI LITHIUM BATTERY
October 13, 2021
by on October 13, 2021

Love it a little shorter but was able to make it work. you should advertise fitment for my Harley Night Rod Special. This is my 3rd battery and sure will buy another one from you guys if needed.

JERRY
CA
Would recommend to a friend?
Yes
Not the performance I hoped for
December 5, 2013
by on December 5, 2013

Shipment was very quick and the battery is a good fit on my '07 HD Sportster 1200C. After a week of use, the battery failed to start. I bought the charger and it showed that it was fully discharged. As temps dropped into the 20's and 30's, the starting was very labored and took a long time to get going.

I will say that my previous lead-acid batteries performed much worse than this battery (never

Mike
NYC
Would recommend to a friend?
Yes
Wanted a long lasting battery
October 29, 2012
by on October 29, 2012

so far seems like a great battery. The delivery time was very quick. No complaints

Picky Jeff
Saint George Ut
Would recommend to a friend?
Yes