Power pack supply, chargers and conversions
Six standing services, one measured record
Talaria Power Tech (HongKong) Co., Limited supplies battery packs, chargers and fleet conversions from its Tsim Sha Tsui quarter at Rm 704 Cheuk Nang Centre, 9 Hillwood Rd, Tsim Sha Tsui, Hong Kong - 999077, Hong Kong (HK). The six services below are the whole catalogue. Each one has a bay letter, a fixed procedure and a document that travels with the unit. If you would rather talk it through, call +15515527126 or write to direct@talariapower.buzz.
Pack Assembly Bays
A pack assembly bay turns graded cells into a finished enclosure. The work begins with intake grading: every lot is measured for resting voltage and internal resistance, and cells that fall outside the tight band are moved to spare stock rather than mixed into a new pack. Grouping is done by measured similarity so that each series group behaves like its neighbours across the whole temperature range.
Assembly happens on a fixed jig. Spacing is held constant, busbars are cut to length and dressed at the ends, and welding is recorded tab by tab. Terminal hardware is torqued with a calibrated driver and the value is written on the build sheet. Before the lid is closed, the bay checks seal seating, runs a continuity pass across every sense line and performs a low current wake test to confirm that the management board sees all groups. Nothing leaves the bay without a signature.
What you receive
A sealed pack with a serial plate, a build sheet showing cell lots and torque values, a continuity record, and a matching note that tells the desk which charger profile suits the finished unit. Typical bay lead time for a small fleet order is two to three weeks depending on cell availability.
Charger Batch Runs
Chargers are tested in matched batches rather than one at a time. A batch shares a bench, a load bank and a common test window, which means the charging curve of each unit can be compared directly against its neighbours. Units that drift from the batch median are set aside for inspection instead of being shipped with the group.
Each run records the thermal rise of the case, the behaviour of the cable and connector, the cut off point and the rest voltage after a settling period. We also test at a low ambient temperature because a charger that behaves in a warm room can trip on a cold depot floor. The thermal note travels with the unit so a depot manager knows what to expect on a winter night window.
What you receive
Matched chargers labelled by batch, a thermal note for each unit, a cable and connector check, and a charging map that suggests the best night window for the pack chemistry involved. Batch runs are usually scheduled to fit around an operator upgrade rather than the other way around.
Fleet Conversion Desks
A fleet conversion desk is a planning unit, not a workshop bay. It sits with an operator and maps vehicles, depots, routes and charging points against a calendar so that the conversion can be staged without stopping the fleet. The plan is broken into stages by route, depot or shift, and every stage carries an entry condition and an exit condition.
Wiring review is part of the desk work. Older harnesses were often specified for a lower current pack, and a conversion that ignores this simply moves the failure from the battery to the loom. We measure voltage drop under load and specify a replacement where the numbers justify it, documenting the decision so a workshop later on can see the reason. Charging infrastructure is planned in the same pass, using matched charger batches so the depot can rely on real absorption times.
What you receive
A staged schedule with a rollback plan for each day, a per vehicle sheet, a charging map, a technician briefing and a spare parts list. The briefing is written for the people who will do the work, not for a filing cabinet.
Cell Balance Windows
A balance window is opened when a pack drifts between groups. Drift is quiet: it appears as a shorter ride on a cold morning, a charger that finishes early, or a range that falls away faster than the fleet average. We open the window, measure every group and correct the spread with a slow programme that does not stress the strongest group in order to rescue the weakest.
The programme is chosen after the measurement, not before. Some packs need a gentle top balance, others need a longer hold at a lower current, and a few need a group replaced entirely rather than balanced. We say so plainly when replacement is the honest answer, because a balance that hides a failing group only postpones the return.
What you receive
A before and after record of group spread, the programme used, the duration, and a recommendation on when to open the next window. If the pack is still in warranty, the record is also sent to the assembly bay so the build history stays complete.
BMS Tune Reviews
A tune review reads the management profile against the way a fleet actually rides. A delivery fleet that does many short runs and few deep discharges may need a different balancing trigger than a long distance operator, even when the packs are identical. We pull logs, compare them with the riding pattern and propose a narrow set of changes.
Every proposed change comes with a reason and a rollback path. We do not tune to hit a number on a specification sheet; we tune so that the pack behaves predictably for the operator. Where the logs are too thin to support a change, we say so and ask for another week of data rather than guessing.
What you receive
A review note listing the current thresholds, the observed behaviour, the proposed changes and the rollback steps. For fleets already in service, the note also records which vehicles received the new profile and on what date.
Range Test Sittings
A range test sitting runs a full load profile on a fixed course until the pack reaches cut off. The course and the profile are held constant between sittings so the numbers can be compared without argument. The result is a range record, not an estimate, and the record is the most useful document we produce for a fleet manager.
Operators are welcome to attend a sitting. Watching the curve flatten in person is usually more persuasive than a report, and it gives the desk a chance to ask how the ride actually feels at the end of a shift. That conversation often surfaces a tuning idea that the logs alone would not suggest.
What you receive
A range record with the course description, ambient conditions, load profile and cut off behaviour, plus a comparison against the fleet average and the previous sitting for the same unit. Sittings are booked through the contact desk at +15515527126.
How a job moves through the quarter
Brief
A short conversation by phone or email establishes fleet size, chemistry, routes and the date the work must finish.
Plan
The desk maps bays, batches and stages against your calendar and issues a written plan with entry and exit conditions.
Build
Packs are assembled, chargers are batched and conversions are staged. Every step is recorded against a serial number.
Measure
Balance windows, tune reviews and range sittings confirm the result and leave a record that the fleet can rely on later.
Talk to the wing quarter desk about your next batch
Tell us the fleet size and the date you need the first stage running.