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Expert repair, cell balancing, and custom engineering for high-voltage electric vehicles, light electric scooters, three-wheelers, and LiFePO4 solar battery backup arrays.
Volt Lab provides comprehensive diagnostic, upgrade, and assembly services. Click any card to view testing protocols and warranty details.
Full diagnosis, balancing, and cell module replacements for EV automotive batteries. We revive hybrid and electric passenger vehicles.
Redesign and cell-group swapping for 36V to 72V scooter batteries. We build custom-waterproof enclosures using premium matched cells.
Design, integration, and repair of 48V solar-storage battery banks using premium high-discharge prismatic LiFePO4 cells.
Controlled load capacity drops and internal resistance analysis down to 0.1mΩ to isolate degraded cells before packs fail.
Firmware flashing, active balance configuration, and parameter customization (overvoltage limits, protection margins) for any BMS.
From-scratch battery engineering. We design configurations, pick cell chemistry formats, and execute professional wiring integrations.
Every battery pack undergoes a strict five-step inspection and calibration cycle to guarantee field longevity.
Visual checks for thermal stress and moisture, followed by deep static voltage profiling.
Every cell group is benchmarked under resistive loads to map weak modules.
Faulty groups are swapped out with capacity-matched cells using double-pulse spot welds.
BMS firmware boundaries are reset, active balancing is initialized, and parameters locked.
Full-pack load run is logged. State of Health certificate is issued along with warranty.
Estimate layouts, weights, and energy values. Pick your chemistry, voltage, and capacity constraints.
Cell Model: 32700 Cylindrical
Max continuous discharge: 60A
See how our experts weld, assemble, and test battery packs using industry-grade tools.
Pure copper tabs welded precisely for zero-resistance electrical connections.
Ensuring complete safety and balanced cell charging cycles.
Individual cell health checkups to isolate and replace degraded modules.
Assess your battery pack's state-of-health. Complete three short steps to build a diagnostic service request.
Determining preliminary recommendation.
Click below to submit this profile directly to our repair workshop. Our technicians will prepare your intake docket and diagnostic pricing estimate.
We handle various cell chemistries, aligning replacements to match the factory specifications exactly.
Extremely stable, non-flammable chemistry. Ideal for solar backup arrays and tuk-tuks.
High energy density. Preferred chemistry for long-range electric vehicles and high-power scooters.
Highest commercial energy density capacity. Requires premium grade BMS protection arrays.
Ultra fast charging and unmatched cycle lifespan. Fits extreme duty heavy industrial cycle runs.
We utilize industry-standard diagnostic hardware to inspect and assemble battery cells to milliohm specifications.
Delivers microsecond pulses to weld pure nickel tabs cleanly, avoiding cell thermal shock.
Discharges battery packs under program-controlled loads up to 100A to log capacity graphs.
Measures cell internal resistance at 1kHz frequency to pinpoint micro-degradations.
Configures and calibrates smart protection settings on Daly, JBD, and ANT controllers.
Learn more about lithium battery repairs, safety limits, and custom designs in Sri Lanka.
Yes, absolutely. In most cases, a "dead" battery pack isn't entirely dead; rather, one or two cell modules have degraded or drifted out of balance, triggering the BMS safety shut-off. We locate and replace only the degraded cell modules, balance the voltage across the entire pack, and recalibrate the BMS parameters. This restores the pack's capacity at a fraction of the cost of a full replacement.
The cost of rebuilding scooter (36V, 48V, 60V, 72V) or three-wheeler batteries in Sri Lanka depends on the pack's voltage, target capacity (Ah), and the cells chosen (e.g. Samsung, LG, or Eve cylindrical cells). Because we swap the entire cell assembly with new capacity-matched cells while reusing your existing case and sometimes the BMS (if healthy), you save significantly compared to importing a new battery pack.
LiFePO4 (LFP) cells are outstanding for home solar storage because they offer high thermal safety and exceptional lifespans. A standard LFP pack assembled by Volt Lab provides 3,000 to 5,000 complete charge/discharge cycles before reaching 80% state-of-health. Under typical daily solar cycles in Sri Lanka, this translates to over 10 to 15 years of reliable off-grid operational life.
Yes, Volt Lab stands behind all workmanship. We offer a 6-month warranty on light electric vehicle pack rebuilds (scooters, e-bikes) and individual EV battery module swaps. Custom-designed home energy storage solar walls and industrial systems come with a 1-year comprehensive warranty on all structural and electrical components.
You can drop off your battery pack at our diagnostic workshop in Negombo, Sri Lanka, or send it to us via secure local courier. We will run it through our load capacity diagnostic rig, measure its internal resistance, isolate faulty groups, and provide a full health report along with a detailed repair estimate within 24 hours.
Send us your battery specifications. We'll run a quick diagnostic check and send a quote within 24 hours.
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