BT13L Coulomb Meter 30A Automatic Battery Charge & Discharge Controller voltmeter ammeter multimeter brilliant focus

brilliant focus

Ideal for daily commuters

or laptop bag — your go-to reference tool wherever you work or learn

Intelligent Temperature-Based Speed Control:- Automatically adjusts fan speed based on surrounding temperature (0–60°C)

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BT13L Coulomb Meter 30A Automatic Battery Charge & Discharge Controller voltmeter ammeter multimeter brilliant focusStop guessing your battery's health the BT13L Coulomb Meter gives you complete, real time control over every charge and discharge cycle. The BT13L is a professional grade all in one battery charge and discharge controller designed for serious energy users. It measures voltage (0. 01V resolution), current (0. 01A resolution), capacity in Ah, energy in Wh, state of charge percentage (SOC%), runtime, and temperature all displayed simultaneously on a