SparkFun LiPo Fuel Gauge
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Monitor a single-cell lithium battery with this LiPo Fuel Gauge. It estimates relative state of charge and directly measures battery voltage, communicating results to the host over I2C. An alert connection can indicate when charge falls below a configured percentage, helping an embedded application respond before its available energy is exhausted.
Before you buy
Review supported battery characteristics, wiring and estimation behavior; state of charge is an estimate rather than guaranteed remaining runtime.
SparkFun SKU: TOL-20680 · Category: Battery monitoring boards
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Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.