Application
Battery Repair and Small PACK Assembly
A workshop needs different things from a retail buyer: documentation at the board revision level, repeatable configuration, and a way to test a repair without risking a customer's pack.
This page is not finished
The engineering constraints below are written, but this page has not yet been reviewed by a technician and contains no product-specific recommendations.
Blocked by: Technical review (docs/evidence/) — see ACCEPTANCE A-09
We publish this page in its incomplete state rather than filling it with plausible-looking detail. If you need an answer now, ask us directly.
What this application demands
Each line is a constraint that can rule out a board on its own. They are listed in the order they usually eliminate options, and each one has to be checked against the manufacturer's document for the specific model.
Revision-level documentation
Repair decisions depend on the exact board revision, not just the model. A manual that does not match the hardware in hand is worse than no manual.
Repeatable parameter sets
A shop configuring dozens of packs needs saved, exportable parameter profiles. Hand-entering thresholds on every unit is where mistakes happen.
Fault diagnosis rather than replacement
Distinguishing a failed sense lead from a failed board from a failed cell requires data the BMS can expose — per-cell voltages, temperatures and event history.
Documentation for the end customer
A repaired pack handed back to a customer needs a record of what was changed and what limits now apply. That is a process requirement, not a product feature.
Where selection goes wrong here
- Working from a manual whose revision does not match the board.
- Replacing a board before confirming the sense harness is intact.
- Returning a pack without recording the configured limits.
What to send for a fit check
Four items. With all four, one reply is usually enough to say whether a given board works — or which constraint rules it out.
- Cell chemistry
- LiFePO4, LTO or Li-ion — the series range differs between them.
- Series count
- How many cells in series, or the nominal pack voltage.
- Continuous load
- What the pack powers, and its rated wattage or current.
- The other end
- Inverter, charger or motor — the protocol has to match on both sides.
The same board, four different constraints
Every application page describes what the environment demands. None of them names a model — that decision belongs on the product page, with a source attached.
- RV / Campervan / Marine
In a vehicle or a boat, the load is intermittent and often inductive, the alternator is a second charging source, and the install is usually inside a confined space that nobody wants to open twice.
- Off-grid Solar / Backup
A stationary system trades mobility for scale: higher series counts, larger continuous currents, and a duty cycle that is close to continuous. The failure mode that matters is thermal, not mechanical.
- Electric Mobility
Traction loads are the harshest case for current ratings: high peak, fast repetition, and vibration that works loose any connection that was not mechanically secured.