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Fault diagnosis

Changan CS55 PLUS: Battery discharge and weak starting after prolonged parking or electrical use with the engine off

Insufficient low-voltage power and weak starting occur after prolonged parking or electrical use with the engine off.

By Funbyautoparts Editorial2 min read
Difficulty: IntermediateContent type: Diagnostic Guide

Changan CS55 PLUS: Battery discharge and weak starting after prolonged parking or electrical use with the engine off

Symptoms

  • Insufficient low-voltage power and weak starting occur after prolonged parking or electrical use with the engine off. [1]

Possible causes

  • The manual lists self-discharge, electrical use with the engine off and current leakage as factors in battery discharge. [1]

Checks

  • Check the electrical usage history and perform the manual's battery and vehicle light load checks. Have the repairer confirm the condition. [1]

What to do

  • First confirm the state of charge and the cause of discharge; do not immediately replace the 12V (low-voltage) battery before confirming damage. [1]

Applicability and limits

  • Official Russian-language owner's manual for Russia; model CS55 PLUS; applicable model years are not specified. Applicability to the actual powertrain and configuration needs to be checked. Scope: unknown [1]
  • The cover and body explicitly identify CS55PLUS; the PDF metadata title incorrectly says CS95. The model in the body is used
  • June 2021 is the manual preface date and is not treated as an applicable model year

Related part categories

  • Low-voltage batteries / 12V (low-voltage) battery / Low-voltage power supply [1]

Sources

[Source 1] CHANGAN CS55PLUS Russian-language Owner's Manual (preface dated June 2021) — PDF pp.273–274, Аккумуляторная батарея / Причины разряда / Проверка зарядки (accessed 2026-11-01)
https://changanauto.ru/storage/model/manual/FHUuursBRb7sqRJze5U745jYBuMdJond1E6uYpc6.pdf

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