Battery Maintenance and FAQs

This guide explains how to charge, maintain, and troubleshoot the DWARF II battery to ensure optimal performance and longevity.

1. Charging DWARF II

• Use a Type-C data cable to charge DWARF II. For outdoor charging, a power bank can be used.
• Fast Charging: DWARF II supports up to 18W PD fast charging with a USB-C to USB-C cable and a compatible adapter.
  • Input power exceeding 18W is supported but capped at 18W.
• Charging While Using: DWARF II can operate while charging. Use a power adapter with 10W or more to prevent battery drain.

2. What is Battery Over-discharge?

• Lithium batteries consume a small amount of power even when the device is off. Over time, this can lead to over-discharge, where the battery level becomes too low to power the device.
• Long Transportation: DWARF II may arrive with an over-discharged battery due to extended shipping times.
  • Solution: Remove the battery, reinstall it, and charge DWARF II.

3. Battery Maintenance

For Frequent Use

• Turn off DWARF II while charging if not in use to avoid unnecessary battery wear.

For Long-term Storage

• If unused for over a week, charge the battery to 50-80% (2-3 indicator lights), remove it, and store it in a cool, dry place.
• If unused for 3+ months:
  1. Fully charge the battery.
  2. Discharge it completely.
  3. Recharge to 50-80%, remove it, and store it properly.

4. Battery Lifespan

• At normal temperatures (23℃), the battery retains 80% capacity (4480mAh) after 300 full charge cycles.
  • Full Charge Cycle: Charging from 0% to 100% and discharging back to 0%.

5. Common Questions

Q1: Does charging while using affect battery life?

No. When plugged in:

• If input power exceeds DWARF II's consumption, the excess charges the battery.
• If input power is insufficient, the device supplements power from the battery.

Use a 10W+ charger to ensure stable operation without affecting battery health.

Q2: How long does charging and usage take?

• Usage: 3 hours on a full charge (23℃ environment).
• Fast Charging: 70 minutes (5% to 100%).
• Normal Charging: 95 minutes (5% to 100%).

Q3: Can DWARF II operate without a battery installed?

No. DWARF II requires a battery for operation. Plugging in the adapter before installing the battery may cause inaccurate battery level detection.

Q4: What to do if the battery is over-discharged?

1. Plug in the charger. The battery indicator will blink as charging begins.
2. If it blinks for a long time without progress, charge for 1 hour, disconnect the adapter, reinstall the battery, and try again.

Q5: How to fix incorrect battery level display?

If the battery was removed during charging, follow these steps:

1. Unplug the charger.
2. Remove the battery.
3. Reinsert the battery.
4. Plug in the charger to recalibrate the battery level.