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MillerTech 50Ah 12V SPRINTR Lithium Iron Phosphate (LiFePO4) Battery (1250SP)

MillerTech 50Ah 12V SPRINTR Lithium Iron Phosphate (LiFePO4) Battery (1250SP)

Regular price $284.00 USD
Regular price $299.00 USD Sale price $284.00 USD
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The SPRINTR series of lithium batteries from MillerTech make use of carefully matched Grade B lithium cells with a premium battery management system to give you the same great performance of their PREMIUM batteries but with a lower price tag.  These batteries feature the same internal construction, safety measures, and electronics, including a new on/off switch on top of the battery and a new, full-color LED fuel gauge to show you the state of charge of the battery at a glance.

SPRINTR batteries are the successor to the ECONOMY series that MillerTech previously offered and have the technology and low price to compete with the flood of cheap, low-quality lithium batteries on Amazon and Ebay from Chinese companies you have never heard of.  MillerTech is an American company from Ohio with a well established reputation, an excellent warranty that they stand by 100%, and customer service and technical support that answer the phone during business hours right here in America!

This SPRINTR series carries a full 3 year warranty that covers everything except abuse or misuse.  MillerTech will replace or repair the battery at their cost and discretion.

To download the 1250SP user manual:


50Ah 12V LiFePO4 Deep Cycle SPRINTR Battery Specifications:

  • Efficiency:  98%
  • Max charge voltage:  14.6V
  • Cut off voltage:  10.5V
  • Charge current:  30A
  • Discharge current:  50A
  • Peak discharge current:  150A for 5 seconds
  • Operating temperature:  -4F to 140F
  • Low temperature charging protection: Cutoff 30F, Reconnect 32F
  • Connection capability:  4S - 4P
  • Terminals:  M8 (bolts, lock washers, and washers included)
  • Weight:  13.89 pounds
  • Size:  9" x 5.8" x 8.3"
  • Warranty:  3 years
  • Cycle Life at 1C:  80% capacity left @ 2000 cycles

Recommended Charger:  MillerTech 1220C

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