JS-2A84S Jump Starter Selling CARKU for roadside assistance kits

Specifications

Fitment & verification

How to identify the correct unit: locate the reference number stamped on your original component or in the vehicle parts catalogue, then cross-check it against the number below before ordering. Trim and market variants exist for many applications, so the short check is worth the minute before checkout.

How to identify & confirm fitment in 4 steps

1. Locate the OE / reference number on your old part or in the vehicle parts catalogue.
2. Match it to JS-2A84S shown on this page.
3. Send your VIN and engine code plate so our team runs an exact-fit check.
4. Receive fitment confirmation before we dispatch your order.

Cross-reference coverage for jump starter fitment is listed above; confirm your VIN before ordering.

Product overview

A direct-fit compatible replacement referenced by JS-2A84S for the applications listed in the fitment block.

Construction & materials

Built to the original equipment drawing, the Jump Starter follows the same inspection checkpoints as the reference sample. Tolerances that affect installation are held to the drawing rather than adjusted on the bench.

• Surface treated to resist corrosion in road and workshop conditions.
• Dimensional check against the reference sample before packing.

Material and build choices answer the most common jump starter replacement and jump starter guide questions from workshop buyers.

Application & fitment

The fitment block above lists the markets and model families this reference is stocked for, so buyers can match demand without re-checking every listing.

Technical notes

Field note. Typical failure signs on an e-mobility pack are shrinking range per charge, voltage sag under acceleration that trips the BMS, sudden cutouts on hills, a charger that stops early, or unequal cell groups reported over Bluetooth or a display. The pack itself is the energy source for the motor controller on 48 V, 60 V and 72 V platforms, and its integrated BMS decides when charging or discharging must stop. Diagnosing starts by separating battery-side symptoms, such as sag and cutout, from charger-side faults, such as incomplete charging.

Field note. Before first use, match the charger to the pack platform: a 48 V class pack charges near 54.6-58.4 V depending on chemistry, 60 V near 67-73 V, and 72 V near 84-88 V. Tighten main terminals to specification and verify low contact resistance, since a loose terminal heats under 80 A continuous current. Never parallel two packs whose voltages differ by more than about 0.5 V, because equalizing current can reach hundreds of amps. Confirm the BMS continuous discharge rating exceeds the motor startup surge, not just its steady draw.

Application context. Charge only between 0 and 45 degrees C; charging below freezing without a heating function plates lithium onto the anodes and permanently cuts capacity. For storage, keep roughly half charge and top the pack up every one to two months, because a pack left empty can drift below the BMS recovery threshold. Inspect terminals periodically for discoloration or warmth after rides, keep the case and connectors dry, and avoid repeated full-depth discharge; limiting depth of discharge is the main lever for reaching the upper end of cycle-life ratings.

Application context. Compare chemistry first: LiFePO4 offers the longest cycle life and the best thermal stability at about 35-45 kg for this capacity, while NMC saves roughly ten kilograms and performs better in cold but cycles fewer times. Ask for the cell specification sheet and a factory discharge test report, then weigh the delivered pack; a 60 V 80 Ah unit far below its expected weight signals overstated capacity. Check that the listed BMS continuous current matches the controller, and confirm the enclosure rating, IP65 or better, if the pack rides exposed.

Deep dive. Packs of this type ship under UN 38.3 transport testing, and reputable cells carry IEC 62133 or UL 2054 certification; Chinese e-bike platforms also reference GB 17761-2018. These marks matter because a 4.8 kWh pack concentrates enough energy that a cell-level fault can escalate quickly, so certification of the cells together with the BMS over-current, over-charge and over-discharge thresholds is the practical safety baseline. When auditing a supplier, treat certifications as documents to verify, not stickers, and match the BMS trip settings printed in its manual.

Deep dive. Buyers are typically fleet operators converting rickshaws, delivery scooters, golf carts, floor scrubbers and small AGVs from lead-acid to lithium, plus importers specifying 48 V, 60 V or 72 V platforms for regional markets. They prioritize total cost per kilometer, charging time measured in one to two hours instead of a lead-acid overnight, and maintenance elimination, since no watering is needed. A second group is performance e-motorcycle builders who want the lighter NMC weight for handling. Both should size the pack to daily route energy with headroom.

Deep dive. A traction pack rarely fails alone, so plan concurrent replacement of the parts that age with it. Inspect the main fuse or circuit breaker feeding the controller, since repeated peak loads from hills and heavy cargo fatigue it over time. Check charger output connectors and Anderson-style battery plugs for arcing marks, and replace crimped cable lugs showing discoloration instead of re-torquing them. Match any replacement charger to the pack's exact nominal voltage and BMS cutoff profile. Wheel-hub motors and throttles usually outlast the pack, but corroded controller terminals should be cleaned or renewed during the swap.

Field note. This pack ships as a Class 9 dangerous good. A 60 V 80 Ah pack sits far above the 100 Wh threshold, so Section II relief does not apply and full UN3480 or UN3481 documentation is required. Air freight demands a UN38.3 test summary, a shipper's declaration, and a state of charge at or below 30 percent; UN3480 also moves on cargo aircraft only. Sea freight under the IMDG Code is the practical route for large packs and bulk orders. Terminals must stay insulated against short circuit throughout transit.

Technical background. Prepare a small kit before installation: an insulated torque driver for terminal hardware, a digital multimeter to verify pack voltage matches the order, and a compatible charger, never a lead-acid profile. Many packs of this class expose BMS data over Bluetooth or an UART port, so install the vendor's monitoring app and confirm cell balance before the first ride. Use a fuse puller or insulated pliers for the main fuse, dielectric grease on exposed contacts, and zip ties to route cables away from sharp chassis edges.

Technical background. Expect noticeably shorter range below roughly 0 C, because lithium cells deliver less usable capacity when cold; ride gently until the pack warms. Never charge a pack that has been stored below freezing until its core temperature rises above 0 C, otherwise lithium plating can permanently reduce capacity. In summer, avoid parking in direct sun and fast-charging immediately after hard use, since sustained heat accelerates electrolyte aging. Store the pack between roughly 30 and 60 percent charge in a cool, dry room rather than on the vehicle.

Application context. For fleet purchases, demand a consistent documentation package with every batch: the UN38.3 test summary covering the exact cell model, an MSDS matching the label voltage and capacity, and factory cycle or capacity test reports. On arrival, sample-check open-circuit voltage for uniformity, since a large spread suggests unbalanced cells. Record serial numbers against purchase orders so warranty claims trace to a production lot. Reject units with swollen housings, damaged connector insulation, or missing cell-balancing leads, and quarantine any pack whose BMS refuses to communicate.

Application context. The 48 V, 60 V, and 72 V variants look identical but are not interchangeable: a controller and DC-DC converter set for one nominal voltage will fault or shut down on another. Confirm whether the listing's amp-hour figure refers to total pack capacity or a parallel-group rating, and check the BMS continuous discharge limit against your controller's peak current. Connector styles vary between sellers, so plan for a plug swap. Communication protocol differences, UART versus Bluetooth, matter if you already run a dashboard display.

Supply note. BMS thresholds commonly specified for this class: over-charge near 3.65 V per cell, over-discharge near 2.5 V per cell, and an over-current trip at 1.2-1.5 times the rated discharge current.

Application note. Typical operating window is 0 to 45 degrees C for charging and about -20 to 60 degrees C for discharging.

Supply note. Cycle life is commonly rated from 2,000 to 5,000+ cycles at 80 percent depth of discharge for LiFePO4, versus roughly 1,000-2,000 for lead-acid; UN 38.3 transport testing applies to shipment.

Workshop note. Nominal 60 V x 80 Ah equals roughly 4.8 kWh of stored energy; 48 V, 60 V and 72 V are the three standard DC platforms for e-mobility packs of this class.

Supply note. A 60 V 80 Ah LiFePO4 pack typically weighs about 35-45 kg, an NMC pack about 25-30 kg, while an equivalent lead-acid set runs 60-65 kg.

The engineering notes above compile verified reference, material and application data for aftermarket jump starter and compatible jump starter.

Quality & testing

Inspection runs on an AQL sampling plan: incoming material, in-process checkpoints and a final release check are recorded on the batch sheet.

Warranty & support

12 Months limited warranty against manufacturing defects. Coverage applies to correctly installed units; keep the batch date code so any claim is processed against its inspection record. Peak-current, clamp and charging questions are answered by our team before dispatch.

Why buyers pick Vidishi Auto

Jump Starter — Jump Starter. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request. Jump starters and battery boosters are supplied for roadside and fleet emergency-starting programs.

Logistics & packing

We ship worldwide to distributors and garages from China, Dongguan. Each Jump Starter is packed in a single-unit export carton. Units ship in protective cases with clamps and charge cables secured. Tracked air or sea freight is arranged per order volume.

Bulk quantities of wholesale jump starter, jump starter supplier and jump starter price ship in mixed containers from China, Dongguan.

Mixed-container programs for jump starter bulk order are arranged per order volume.

Cross-reference numbers

Catalog numbering for this Jump Starter: the primary reference is JS-2A84S. When a supplier catalog lists superseded or regional formats, match on the numeric core of the code rather than the prefix, then confirm the physical fit.

Catalog cross-references for jump starter catalog resolve to JS-2A84S.

Frequently asked questions

Send car power pack, emergency battery booster and peak current jump starter enquiries with your reference number for a same-day reply.

Compliance disclaimer

Vidishi Auto is an independent supplier. This is an aftermarket compatible replacement, not a genuine OEM part. Brand names are trademarks of their respective owners and are used only to identify fitment.

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Clamp and port options are matched to the fleet; the scope below is confirmed before dispatch.

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