Winter Robotic Vacuum Cleaner Charger = "Sensitive to Cold, Moisture, and Condensation" Maintain it using the four-step method of "Warmth + Drying + Light Load + Monitoring" for zero malfunctions all winter!

I. Warmth – Giving the Charger a "Down Jacket"

1. Storage Temperature: ≥5℃, avoid long-term storage below 0℃;

2. Indoor Charging: Prioritize charging indoors/in a garage to avoid outdoor frost;

3. Anti-freeze Cover: Cover the charger with insulating cotton/foam box to prevent condensation.

II. Drying – Preventing "Condensation Short Circuits"

1. Keep Dry: Wipe the outer casing dry before charging to prevent frost and snow from seeping in;

2. Desiccant: Place a silicone bag in the charging area to absorb moisture;

3. Do Not Cover with a Damp Cloth: Never cover the charger with a damp cloth/plastic bag.

III. Light Load – “Gentle Charging”

1. Pre-charge: Charge only when the battery temperature reaches >5℃ to avoid high current at low temperatures;

2. Current Reduction: Reduce the current to 0.1C (10A for 100Ah) to reduce internal heat generation;

3. Extended Float Charge: Extend the float charge time by 30 minutes to fully desulfate.

IV. Monitoring – “Winter Checkup”

1. Temperature Monitoring: Use infrared thermography on the casing; suspend charging if the temperature exceeds 55℃;

2. Condensation Monitoring: Dry the interface after charging to prevent short circuits caused by condensation;

3. Monthly Checkup: Clean dust, measure ripple, check solder joints, and replace aging capacitors promptly.

V. Manufacturer's Recommendations (Hengjunfeng/Chengdian Xinsheng)

- IP65/IP67 Waterproof: Aluminum shell potted with glue, suitable for operation in extremely cold conditions down to -40℃;

- NTC Temperature Protection: Automatic power reduction at <0℃, no shutdown in winter;

- Monthly Checkup: Clean dust, measure ripple, check solder joints, and replace aging capacitors promptly.