Vancouver · Lithium battery lab

Rebuild the pack. Keep the bike.

Extend the life of your electric scooter or e-bike battery with professional lithium refurbishing by certified technicians. We repair and restore packs instead of throwing them away — when it's safe to do so, and we'll tell you plainly when it isn't.

E-scooter packsE-bike packsCustom buildsBMS diagnostics
12 months
Service warranty
3–7 days
In-store turnaround
Li-ion
Scooter & e-bike
4.9
657 Google reviews
Cell health bench
Usable capacity 58%
Weak cells 5 flagged
Cell balance Drifting
Pack status Needs work

Illustrative diagnostic view. Every pack is measured individually — your report shows your own cell readings, voltages and recommendation.

Full safety testing before return
Transparent quote after inspection
1199 Grant St., Vancouver
Request assessment
Why ProMechBC

Battery work is not general repair

Lithium packs store a serious amount of energy in a small space. They deserve a bench, the right instruments, and someone who has opened a few hundred of them.

Certified battery specialists

Lithium battery diagnostics and refurbishment performed by trained, experienced technicians — not a general mechanic with a soldering iron.

12-month service warranty

Every refurbished battery is backed by a limited service warranty covering workmanship and the components we replaced.

Eco-friendly alternative

Reduce electronic waste by restoring the battery you already own instead of sending a mostly-good pack to recycling.

Cost-effective vs replacement

Refurbishing typically costs significantly less than buying a brand-new pack — and you keep the housing, mounts and connectors that already fit.

The process

How our battery refurbishing works

Four stages, in order. Nothing gets opened before it's been measured, and nothing goes home before it's been tested.

Start with an assessment
01

Initial assessment

Bring in your battery, or contact us with photos and details. We'll tell you straight away whether it's worth booking in.

02

Diagnostic testing

We inspect the cells, BMS, wiring and overall battery health — voltage, balance, internal resistance and charge behaviour.

03

Refurbishment & balancing

Faulty cells and components are repaired or replaced where possible, and the pack is rebalanced to bring the group back into line.

04

Final safety testing

Batteries are tested for performance, voltage stability and safety before they leave the bench — every time, no exceptions.

Macro view of lithium-ion cells inside an opened battery pack
Cell-level inspection Every group measured, not just the pack total
Battery management system board under diagnostic test
BMS diagnostics Balance, cut-offs and charge behaviour
Technician spot-welding new cells during a battery rebuild
Rebuild & rebalance Original housing and electronics preserved
Making the call

Refurbish or replace?

Both are legitimate answers. Which one you get depends on what the diagnostics show — not on which one is easier for us to sell.

Usually the better option

Refurbish the pack

When the housing, BMS and most cell groups are sound, and the fault is localised.

Cost-effectiveRestore performance at a fraction of the cost of a new pack.
Eco-friendlyReduce electronic waste and extend the life of what you own.
Improved range & reliabilityAddresses degraded or imbalanced cells directly.
Safety-focusedThorough testing before and after refurbishment.
Fits first timeOriginal housing, mounts and connectors are preserved.

Typical turnaround: 3–7 business days when we can repair in-store.

Sometimes the right answer

Replace the pack

When refurbishing would be unsafe, uneconomical, or simply wouldn't last.

Severe casing damageA compromised enclosure cannot be made safe again.
Internal thermal damageEvidence of a thermal event rules out reuse of the pack.
Widespread cell degradationIf most groups are worn, a rebuild is a short-lived fix.
Any identified safety riskIf we can’t make it safe, we’ll say so and explain the options.

If a replacement battery has to be ordered from the supplier, allow 2–3 weeks depending on availability.

A note on safety

Please don't keep charging a pack that gets hot, swells, smells, or has been in a crash — and don't open it yourself. Bring it in (or call first and we'll tell you how to transport it). If refurbishing isn't possible, we'll explain exactly why and help you dispose of the old pack responsibly.

E-bike battery repair & rebuild

Professional battery rebuild services in Vancouver

Commuters
Daily riders
Couriers
Delivery fleets
Lower Mainland
Service area
Contact us for battery refurbishing

If your e-bike battery is no longer delivering the range it once did, takes longer to charge, shuts down unexpectedly, or simply refuses to hold a charge, replacing the entire battery may not be your only option. We offer e-bike battery repair, refurbishing and rebuild services in Vancouver to help riders restore performance and extend the life of their electric bikes.

Over time, lithium-ion packs naturally wear and degrade. Individual cells become unbalanced, lose capacity, or fail completely — producing reduced range, lower power output, charging problems and inconsistent performance. Our technicians run comprehensive diagnostics to identify the root cause and determine whether a repair, refurbishment or full rebuild is the most cost-effective solution.

Most packs that arrive here as "dead" have four or five tired cells and thirty perfectly good ones.

Our battery repair service includes health assessments, voltage testing, connection inspections, BMS diagnostics, cell evaluation and charging-system checks. Where a pack has lost capacity, we may recommend a refurbishment or rebuild, replacing worn cells while preserving the original housing and electronics wherever possible.

We work with a wide variety of electric bike brands and battery configurations, helping commuters, recreational riders, delivery riders and daily e-bike users throughout Vancouver and the Lower Mainland get back on the road with confidence.

Many customers searching for “ebike battery repair near me”, “battery rebuild service near me” or “battery refurbishing near me” are surprised to learn their existing battery can often be repaired or rebuilt at significantly lower cost than a brand-new replacement.

Questions

Battery refurbishing FAQ

We refurbish lithium-ion battery packs used in electric scooters and electric bikes. That includes batteries from popular brands and custom-built packs, depending on condition and compatibility.

Loved by riders

What our customers say

Real reviews from riders across Vancouver — commuters, students and people who ride every single day.

4.9
656 Google reviews · Read them all →
★★★★★

Fantastic team. Very responsive through email and nice and professional in person. Highly recommend. I had three interactions — the last was just a maintenance. Every time I had a very good experience. It's amazing how for years they've maintained the same level of professionalism and very friendly service.

Piotr Tymkow
Posted on Google · 8 days ago
★★★★★

I had an excellent experience at ProMechBC. The service was incredibly fast, professional and efficient, and the quality of the repair was outstanding. A huge thank you to Saeed for his exceptional customer service — friendly, knowledgeable, patient, and he took the time to explain everything clearly.

Amirreza Najmi
Posted on Google · 1 month ago
★★★★★

Amir and Alejandro were an amazing help. I can't recommend this place enough.

Ch33zu5
Posted on Google · 11 days ago
Ready when you are

Get your battery assessed

Bring the pack in, or send photos and details and we'll tell you whether refurbishing is realistic before you make the trip. 1199 Grant St., Vancouver.