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Shorai LFX21A6-BS12 12v 21Ah Lithium Battery

 In Stock

Delivery to UK Mainland
Buy now for despatch
Tomorrow (Monday)

Part Number:  LFX21A6-BS12

242.83 (inc VAT)


Shorai LFX batteries deliver more energy faster, with less weight and with less wear on the battery per start cycle than any other brand or technology available on the market today

Brand:   Shorai...
Voltage:   12V
Capacity:   7.7AhHelpAmpHour or Ah measures the capacity of a battery.
In simple terms, the higher the Ah the more energy the battery can store.

If you imagine a bucket of water, the bigger the bucket, the more water it can store.

For example.
A 20Ah battery can normally deliver 1 Amp for 20 hours or 2 Amps for 10 hours. At extremes the performance usually drops, for example it may not deliver 20 Amps for one hour.

1Ah = 1000mAh
CCA (EN):   315A HelpCCA or Cold Cranking Amps, measures the starting performance of the battery.
In simple terms, the higher the CCA the easier it will start the engine.

There are several standards.

DIN German Industrial Standard at -18C
EN European Standard EN50342.1 at -18C
SAE American Standard at -18C
Weight:   1.38Kg
Length: 148mm
Width: 82mm
Height: 140mm
Barcode: 4897034420692

LFX21A6-BS12 12V 21Ah Lithium Iron Phosphate Motorcycle Battery

  • Ultra lightweight design - up to 75% lighter than a lead acid equivalent
  • Zero sulphation for longer service life
  • Faster cranking for improved starting performance
  • Ruggedised carbon composite casing


  • Manufacturer: SHORAI
  • Battery type number: LFX21A6-BS12
  • Battery type: Lithium Iron Phosphate (LifePO4)
  • Dimensions: 148mm x 82mm x 140mm
  • Voltage: 12V
  • Storage Capacity: 7.7Ah
  • Lead/Acid equivalent capacity: 21Ah
  • Cold-start performance: 315A CCA
  • Maximum charging rate: 21 Amp (Lead-acid equivalent)
  • Weight: 1.38kg
  • Terminal layout: Left: + Right: - (With the terminals on the edge nearest to you)
  • Warranty: 3 Year limited warranty

Can be used to replace the following battery part numbers;

  • YTX14-BS
  • YTX14H-BS
  • YTX16-BS
  • YTX20A-BS

LFX21A6-BS12: Storage Capacity 7.7Ah, Lead Acid equivalent 21Ah.

Lithium/Iron batteries are around three times more efficient than traditional Lead/Acid batteries which means that up to 80% of their storage capacity is available as usable power compared to only 20-30% for a typical Lead battery. This means that a Lithium battery with a much lower capacity can provide the same starting performance so to help compare Lithium and Lead batteries all our Lithium batteries have both "Storage capacity" and "Lead/Acid equivalent capacity" ratings.

This LFX21A6-BS12 battery also fits the following:
Make Model Make Model

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