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HEART power.battery-failing H-02004

Battery failing. The battery no longer holds charge as it should.

CodeHEART power.battery-failing; inside a message "code": "power.battery-failing"
H-numberH-02004: area 02, code 004
Areapower: Supply, battery, charging
Typical severityerror. A product may set another for its own case.
Applies toBattery products

Likely causes

How to fix or prevent it

  1. Replace the battery with the type the maker specifies.
  2. If it is swollen, hot or leaking, stop using the product, and keep it away from anything that burns.
  3. Check the charger and cable: a fault there can look like a bad battery.
  4. To prevent it: avoid heat, avoid running it flat, and store batteries part-charged.

What the HEART does by itself

It raises an error alert, using the trend of charge and discharge it has seen, and tells a person. It cannot fix a battery.

When to call service

Always, if the battery is built in, swollen or hot, or belongs to a medical or safety product.


Inside a message a code is written bare, "code": "storage.full". In logs, tickets, documents and searches it is written HEART storage.full. Things that simply happen, such as system.started, are event types, not faults. The codes are defined in Part 3, Section 5.4, and their H-numbers in Section 5.7. All of it, as data: fault-codes.json.

All fault codes, by area · All fault codes, by H-number · Problem types (API errors)