Parasitic drain diagnostics
New battery. Flat again. Let’s find what is stealing the power.
A battery can be the victim, not the cause. We test the battery and charging foundation first, then monitor current draw and isolate a circuit or module only when the evidence takes us there.
Recognise this?
Symptoms that need an answer.
- Battery goes flat overnight
- New battery did not solve it
- Intermittent no-start
- Vehicle will not enter sleep mode
- Charging or wiring fault suspected
Why Engine Clean
Measured over time
The fault may need monitoring after systems shut down.
Circuit isolated
Testing narrows the draw before components are blamed.
No battery roulette
The repair follows the evidence, not the easiest part to replace.
Real workshop evidence
HONDA ACCORD 2.2 · CONFIRMED BATTERY FAILUREThe suspected wiring fault that stopped at the battery.
After an alternator replacement, modules and wiring were suspected when the battery still went flat overnight. Charging, settling and next-day retesting proved the 15-year-old battery could no longer retain charge.
Start with the symptoms.
Tell us what the vehicle is doing and what has already been tried.