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MillerTech 135Ah 12V DUAL PURPOSE 1500CCA Bluetooth Lithium Iron Phosphate (LiFePO4) Group 31 Battery (12135DP)

MillerTech 135Ah 12V DUAL PURPOSE 1500CCA Bluetooth Lithium Iron Phosphate (LiFePO4) Group 31 Battery (12135DP)

Regular price $1,035.00 USD
Regular price $1,099.00 USD Sale price $1,035.00 USD
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MillerTech DUAL PURPOSE lithium batteries are the perfect choice for your starting your outboard motor AND running electronics for hours, such as depth finders.  They are built with Grade A lithium iron phosphate (LiFePO4 or LFP) cells and are guaranteed for 10 years with a full repair/replace warranty. They feature Bluetooth battery monitoring with a smart phone app to keep track of vitals.  Each battery will last over 3,000 cycles at the most extreme use: its full discharge rate (1C or 200A) all the way to empty (100% depth of discharge). Or if you are a lighter user it will last well over 8,000 cycles at 40% depth of discharge.

*Ideal for outboard motors over 200hp and/or when running multiple electronics off of the cranking battery*

To download the owner's manual, click here.

To download the bluetooth app, search for MillerTech in the Google Play Store or Apple App Store.


135Ah 12V DUAL PURPOSE Bluetooth LiFePO4 Battery Specifications:

  • Energy Storage:  1728Wh
  • Cell Grade:  Certified Grade A
  • Group Size:  31
  • Max Charge Voltage:  14.6V
  • Cut Off Voltage:  10V
  • Continuous Charge Current:  100A
  • Continuous Discharge Current:  200A
  • Marine Cranking Amps (CCA):  1500A
  • Peak Discharge Current:  1500A for 5 seconds
  • Operating Temperature:  -4F to 140F
  • Low Temperature Charging Protection: Cutoff 30F, Reconnect 32F
  • Cell Construction:  Nano Prismatic
  • Connection Capability:  4S or 4P
  • Terminals:  M8
  • Weight:  32.63 pounds
  • Size:  12.92" x 6.78" x 8.75"
  • Warranty:  Full 10 years (not prorated)
  • Cycle life @ 100% depth of discharge:  3000+ cycles (>80% capacity remaining)
  • Cycle life @ 40% depth of discharge:  8000+ cycles (>80% capacity remaining)

To download the warranty document, click here.

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