First-Time Guide: How to Use USB Type-C Rechargeable Lithium Batteries (Polarity + Indicator)
New to rechargeable batteries? Follow a simple, safe workflow: match 1.5V vs 3.7V, connect the Type-C charging cable correctly, and read the green indicator lights to know when charging is complete.
Step 1: Match voltage and size before charging
This set includes 1.5V for 3号/4号 and 3.7V for 14500. Confirm your device requirement first to avoid unstable performance.
Step 2: Charge safely with the Type-C cable
Do not charge inside devices. Ensure battery polarities do not touch each other during charging to prevent short circuits.
Step 3: Interpret the green LED
Green blinking = charging. Green solid = fully charged. Use this to build a reliable daily routine.
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