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MillerTech 300Ah 48V PREMIUM Lithium Iron Phosphate (LiFePO4) Smart Battery (48300L)

MillerTech 300Ah 48V PREMIUM Lithium Iron Phosphate (LiFePO4) Smart Battery (48300L)

Regular price $7,200.00 USD
Regular price $7,399.00 USD Sale price $7,200.00 USD
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**This product is a low stock item and may be back ordered.  Please contact us ahead of time at to verify stock.  It does not ship free and must be shipped via freight so give us your address for a price quote**

MillerTech lithium batteries are lightweight, non-toxic, and long lasting compared to traditional lead acid batteries.  Each battery has a built in battery management system (BMS) which provides safety and proper charging/discharging.  Each battery also features a built in state of charge (SoC) meter which allows you to conveniently check the voltage and remaining charge of the battery without a multimeter.

MillerTech PREMIUM lithium batteries are built with Grade A lithium iron phosphate cells and are guaranteed for 5 years with a free repair/replace warranty.  Each battery will last over 2,000 cycles at 100% discharge with at least an 80% capacity remaining!

300Ah 48V LiFePO4 Deep Cycle Smart Battery Specifications:

  • Efficiency:  98%
  • Max charge voltage:  58.4V
  • Cut off voltage:  42V
  • Max charge/discharge current:  150A
  • Peak discharge current:  450A for 5 seconds
  • Operating temperature:  -10F to 130F
  • Low temperature charging protection: Cutoff 30F, Reconnect 32F
  • Connection capability:  1S - Unlimited P
  • Weight:  445 pounds
  • Size:  47" x 23" x 17"
  • Warranty:  5 years
  • Cycle life @ 100% depth of discharge:  2000 cycles (>80% capacity remaining)
  • Cycle life @ 80% depth of discharge:  3000 cycles (>80% capacity remaining)
  • Cycle life @ 60% depth of discharge:  5000 cycles (>80% capacity remaining)
  • Cycle life @ 40% depth of discharge:  8000 cycles (>80% capacity remaining)

*This product is not kept in stock and must be manufactured.  Please allow 40 business days lead time on orders.  Freight shipping is required.

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Customer Reviews

Based on 1 review
Initial Experience

So first this thing shipped within a few days, a very pleasant surprise. The freight company was incredible, worked with me on when to deliver and called ahead to make sure I was available. I asked Jason several questions and he was quick to respond! So great customer service.

The unit came well crated with ample foam padding. You do get a 0 gauge connector to wire up for whatever your using this for. It can be mounted so the connector is on top.

The construction seems high quality and I love that you get 15kw without having to string multiple batteries together. It also come with wheels for ease of getting it into place!

I will update once I put the unit into service this summer!