The van, the route pattern, and the battery problem
This job came from a Cape Town fleet operator running a light commercial van on short, stop-start routes between Montague Gardens, Bellville and Milnerton. The pattern was plain enough from the first handover: the van would start well after work, then sit overnight and turn up weak or dead the next morning.
The brief was to find the real drain, not only fit another battery and hope for the best. That meant checking resting current, live battery condition, alternator output, earth paths and the control side of the vehicle that stays awake after the key is off. On a van used every day, a small fault can hide in the wiring and look like a battery issue.
- Vehicle type: fleet van used for daily service work
- Area: Montague Gardens, with route use across Cape Town
- Fault pattern: repeat flat battery after standing overnight
- Main concern: hidden current draw after switch-off
Tracing the draw to the faulty circuit
We began with battery and charging checks, then moved to parasitic drain testing at rest. The battery itself was tested for state of health under load, because a weak battery can mask a wiring fault and a wiring fault can disguise a battery that has already been abused by repeated flattening. Live data and fuse-by-fuse checks helped narrow the circuit without disturbing the wrong side of the van.
The draw sat on an after-hours circuit that should have gone to sleep once the vehicle was parked. We checked the fuse box, relevant earth points and the accessory feed path, then traced the wiring to find where the circuit was staying active. The problem was not dramatic, just stubborn: one part of the circuit was feeding when it should have shut down, and that was enough to flatten the battery over a normal standstill.
- Battery test: load and resting condition checked
- Charging system: alternator output verified
- Drain test: current draw measured after key-off
- Circuit tracing: fuse, earth and accessory feed paths checked
Workshop work and mobile-friendly repair planning
Once the drain was located, we repaired the affected wiring and cleaned up the connection points so the circuit would behave properly after shut-down. The van did not need a full loom replacement, but it did need careful diagnosis, a proper repair at the fault point and a final round of testing to confirm the battery was no longer being pulled down by an unwanted load.
The job was handled in the workshop in Montague Gardens, with the same diagnostic approach we use on mobile call-outs where access is tighter and time on site is limited. For fleet work, that matters. A van may be carrying tools, stock or a driver schedule, so the repair has to be practical, tidy and easy to prove with test figures rather than theory.
- Repair type: wiring fault repair and connection clean-up
- Support checks: starter circuit and charging system verified
- Finish: drain eliminated and systems retested
- Use case: suitable for fleet vans and private vehicles with standby drain issues
Testing after the repair, not before the praise
We would follow the same order on another fleet van with repeat flat batteries: test the battery first, confirm the alternator output, measure the parasitic draw, then isolate the circuit branch before touching parts. That sequence makes the job cleaner and gives the operator a clear answer rather than a long parts list. It also suits vans that work between Montague Gardens, Milnerton, Bellville and the wider Western Cape, where a vehicle can sit parked long enough for a small draw to empty the battery.
When a fault keeps returning, the answer usually sits in the wiring path, an earth issue or an accessory feed that should not remain live after shutdown. This project showed that clearly. Once the current draw was found and repaired, the van behaved the way a working fleet unit should: start, run, stop, sit, and start again without drama.
Key facts
| Project | Montague Gardens Fleet Van |
|---|---|
| Client type | Fleet operator |
| Town | Montague Gardens, Cape Town |
| Fault found | After-hours current draw |
| Repair carried out | Wiring repair and circuit clean-up |
| Key tests | Battery load test, parasitic draw test, charging system check |





