Product Description

A voltage reading tells you very little about a lithium bank — LiFePO4 holds an almost flat voltage until it is nearly empty. A shunt-based monitor is the honest answer: it measures current in and out and tells you the actual state of charge, how many amps you are drawing right now, and how long you have left. This one covers 10V to 100V banks and up to 500A, and reports to your phone over Bluetooth.

Key features

  • Real state of charge – shunt-based coulomb counting rather than a voltage guess, which matters most on LiFePO4.
  • Wide range – 10V to 100V, so it covers 12V, 24V and 48V banks.
  • 500A shunt – headroom for inverter loads and high-current alternator or solar charging.
  • Bluetooth 5.0 – live readings and configuration from a phone app, with no panel cutout needed.
  • Chemistry agnostic – works with LiFePO4, other lithium chemistries, AGM, flooded lead-acid and NiMH.

Compatibility

Fits any 10–100V battery bank within the 500A rating, including every SOK 12V, 24V and 48V battery we carry, and it works equally well on a mixed or existing bank. The shunt installs on the battery's negative side so that all charge and discharge current passes through it.

Specifications

Voltage range 10V–100V
Shunt rating 500A
Connectivity Bluetooth 5.0, mobile app
Supported chemistries LiFePO4, lithium-ion, AGM, flooded lead-acid, NiMH
Typical uses RVs, vans, boats, off-grid and backup energy storage
SKU SK-BM500

Manufacturer warranty

Covered by SOK's manufacturer warranty. We handle the claim for you — contact us and we will open it with SOK.

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