Business account service · Battery keeps going flat
Repeat Flat Batteries — Harborne fleet jumpstart & Diagnosis
Flat again in Harborne? We measure quiescent current and alternator output before selling anyone another battery. Mobile Fleet & Business Jumpstart, 24/7.
A healthy vehicle should draw around 20–50 milliamps once everything has gone to sleep. A faulty module, an aftermarket alarm or a stuck relay can pull ten times that, which flattens a good battery in two or three days.
If your yard in Harborne sees 3+ battery failures a year, you don't need a garage — you need a mobile partner who prices per job on account and turns up before your morning drops leave.
We invoice monthly with full PDF breakdown per vehicle — clean for accounts to file, VAT-compliant, no per-job card fiddling.
Local reference data — Harborne
- Nearest major town
- Birmingham (~3 miles)
- Local authority
- Birmingham City Council
- Area type
- Neighbourhood
- Reference point
- Queen Elizabeth Hospital
- Service covered here
- Fleet & Business Jumpstart
- Postcode districts
- B17
Usage patterns that flatten good batteries
Cars left standing on Edwardian villas for a week or more between uses are the other common case in B17.
Locally that means the streets between Harborne and Birmingham, with access via M6 J6 (Spaghetti Junction) and A38(M) Aston Expressway and a practical radius reaching Birmingham (~3 mi) and Smethwick (~3 mi).
How a drain is actually traced
- Quiescent draw is measured after the vehicle's modules have gone to sleep, which can take 20–40 minutes — measuring too early gives a false high reading.
- Charge acceptance is tested, because a sulphated battery can read 12.6V and still hold almost no usable energy.
- On-site fleet audits available — we check the whole yard once a quarter and flag ageing batteries before they fail
- Every fleet jumpstart finishes with a charging-system reading, so the same fault does not reappear next week.
How the visit runs
- 1
How a drain is actually traced
Quiescent draw is measured after the vehicle's modules have gone to sleep, which can take 20–40 minutes — measuring too early gives a false high reading.
- 2
Onboard the fleet
One call, one fleet list, account live the same day for first callouts.
- 3
Driver calls in
Driver quotes the fleet reference; no card payment, no per-job admin.
- 4
Priority dispatch
Account jobs go ahead of retail callouts, typical arrival 30–45 minutes.
Who this page is for
Owners in Harborne on their second or third battery for the same vehicle.
Domestically, Edwardian villas and modern apartments dominate around here, which shapes how these jobs are accessed and worked.
Why this is safe to book
- Findings are written down with the actual current draw in milliamps, so any follow-up work starts from evidence.
- Old batteries removed and recycled on every fleet jumpstart.
Drain faults found nearby
Recent job nearby: a car in Harborne on its third battery in two years. Drain measured at 480mA, traced to a boot latch microswitch keeping a module awake.
Recent job nearby: a vehicle off M6 J6 (Spaghetti Junction) flattening weekly. Alternator produced 13.1V under load — replaced the charging fault, kept the original battery.
Where we test
As a neighbourhood of Birmingham, Harborne is covered alongside its parent town, so a battery keeps going flat call from any of them routes to the same engineer.
Repeat flat battery questions
Q.Could short journeys alone be the cause?
Yes, and it is more common than people expect. If that is what the readings show, the fix is a conditioning charge and a change in usage, not another battery.
Q.Do you cover Harborne and the B17 area for this?
Yes. Harborne is inside our routine coverage from Oldbury via M6 J6 (Spaghetti Junction), roughly 3 miles from Birmingham. We cover it alongside Birmingham and the surrounding streets.
Q.Can drivers call directly?
Yes — we tag your account against your fleet's registered numbers so drivers don't need to authorise every call, and admin still sees one invoice.
Q.How do we open a business account?
One phone call and a fleet list. First job on account can go the same day; formal terms confirmed by email overnight.
Q.Is a parasitic drain always an electrical fault?
No. Sometimes it is an aftermarket dashcam, tracker or alarm wired to a permanent live. Those are the easy wins and we find them first.
Q.How long does drain testing take?
Allow around an hour. Most of that is waiting for the vehicle's modules to sleep — rushing it produces a meaningless number.
Stop buying batteries. Find the drain.
Proper quiescent current testing in Harborne, with the offending circuit identified rather than guessed. Ask for a fleet jumpstart and quote your postcode — B17 is a routine run for us.
Related pages
- Car Jumpstart — battery keeps going flat in Harborne
- Van Jumpstart — battery keeps going flat in Harborne
- Car won't start, no click — fleet jumpstart in Harborne
- Night and early hours — fleet jumpstart in Harborne
- Stranded in a car park — fleet jumpstart in Harborne
- Battery keeps going flat in Birmingham (~3 mi)
- Battery keeps going flat in Smethwick (~3 mi)
- Battery keeps going flat in Sutton Coldfield (~7 mi)
- Battery keeps going flat across Birmingham
- Fleet & Business Jumpstart in Harborne — main page
- All jumpstart services in Harborne
The short version
A battery that keeps dying is telling you about the car, not about itself. Measure the sleep draw and the charging voltage in Harborne and the real fault usually appears within the hour. For fleet jumpstart specifically, that means bulk battery pricing — replacement agm/efb batteries at trade rates, not retail
Stranded with a flat battery?
Call now or send a WhatsApp — we'll confirm your quote and dispatch the nearest engineer.