Saturday, November 26, 2011

Shorai LFX09L2-BS12 Extreme Rate Lithium Iron Powersports Battery

Shorai LFX09L2-BS12 Extreme Rate Lithium Iron Powersports Battery

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Price: $101.16 Too low to display   Updated Price for Shorai LFX09L2-BS12 Extreme Rate Lithium Iron Powersports Battery now
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Product Feature

  • Ultra-light, one fifth the weight of lead-acid batteries on average
  • Safe, no explosive gases during charge
  • Faster cranking for better starts
  • Just discharge and dispose
  • Super-fast recharge rate

Product Description

This Lithium Iron Powersports battery is a 7Ah 12 Volt "L" polarity, Case Type 2 battery. It is ultra-light and weighs one fifth the weight of lead-acid batteries on average. The battery is safe and no explosive gases during the charge. It features a faster cranking for a better start.

Shorai LFX09L2-BS12 Extreme Rate Lithium Iron Powersports Battery Review

This reviewer also purchased this Shorai LFX09L2-BS12 Battery for ham radio use while camping, and believed it was about a 9 amp-hour battery. It certainly is small, lightweight, and LiFePo4 chemistry is safe and offers many advantages.

Upon receiving and inspecting this battery, I read the cell architecture and Whr(watt hours)on the side opposite what is normally in all the pictures shown and listed online. The architecture is 4S2P, which means that there are four LiFePO4 cells in series and two cells in parallel. Each LifePo4 has a working voltage around 3.2 volts, therefore, a total of about 13.2 volts.

The WHr (watt(amps*volts)hours) listed on the battery is 39.6, so if we divide 39.6(amp*volts*hours)by 13.2 volts, we get the actual amp-hours of only: 3.0 amp-hours.

Additionally, the Shorai Website lists the battery as: 9aH PBeq (lead acid equivalent). I believe, what Shorai is representing, that this small LiFePO4 battery has the same deep cycle ability to start a vehicle, as a regular 9 amp Lead Acid battery.

If a ham radio operator enjoys QRP while camping, this battery will be okay. However, if you are believe you are getting around a 9 amp-hour battery, it does not appear to be the case.

This reviewer would recommend that prior to ordering any battery manufactured by Shorai, ask the retailer to provide the WHr (watt-hours) that is imprinted on the side of battery, then divide by the working voltage. This way you will arrive at the actual amp-hours.

Lastly, check to see if the retailer charges a 20% restocking fee in addition to what you may pay in return shipping.

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