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DJI Agras T40 / T50 Battery Service Unlock Dongle P100 V2 — a specialized battery-service interface tool for compatible DJI Agras intelligent flight batteries. This workshop device is intended for qualified battery technicians performing supported diagnostics, service-state recovery, battery communication checks, and post-repair validation on compatible Agras battery systems.
Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.
FREE & FAST Shipping is included for all U.S. customers.
We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.
Ares Acres LLC supplies advanced service tooling for commercial DJI Agras operators, dealers, repair facilities, and technicians who maintain high-value agricultural-drone battery fleets. Intelligent flight batteries contain battery-management electronics, protection logic, cell monitoring, cycle history, temperature sensing, and communication systems that can place a pack into a protected or service-required state after abnormal conditions or repair work.
We use specialized technicians to verify and dispatch the Battery Service Unlock Dongle P100 V2 ordered.
Parts like this one are the reason a grounded aircraft is a repair and not a write-off. A single component held in U.S. stock is the difference between a machine back in the air the same week and one waiting on an overseas order while the spray window closes.
That is why Ares Acres keeps hard-to-find OEM diagnostic tools in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.
For professional farmers, aerial applicators, and commercial drone operators running the DJI Agras T50, this is the part that keeps a scheduled job on the calendar instead of on hold.
Battery service tools are highly version-sensitive. Confirm the exact battery model, BMS generation, connector type, firmware/service-tool compatibility, and required cables before ordering. Do not assume support for every DJI Agras battery solely because the physical connector appears similar.
One P100 V2 battery service dongle / interface device in the supplier-listed configuration. Cables, adapters, software, computer, power supply, battery reader, equalizer, soldering equipment, and other repair tools are not assumed included unless specifically stated with the final supplied package.
The P100 V2 functions as a service interface between a compatible intelligent battery and a technician workflow. Agras batteries use electronic protection logic to monitor conditions such as cell voltage, current, temperature, pack state, and internal faults. During advanced service or repair, technicians may need a dedicated interface to communicate with the battery-management system and verify that the pack is responding correctly.
This is not a normal operator accessory and should not be treated as a substitute for battery diagnostics. A protected battery may have entered that state because of cell imbalance, internal short circuit, water ingress, impact damage, BMS failure, thermal event, connector damage, or another condition that must be corrected before any service-state reset is considered.
This tool should only be used by qualified battery-service personnel. Lithium battery protection logic exists to prevent operation under potentially unsafe conditions. A battery should never be returned to service merely because a protection state can be cleared. Cell condition, insulation, current paths, temperature sensing, mechanical integrity, connector condition, and BMS functionality should be independently verified first.
Do not use this device on swollen, leaking, physically punctured, thermally damaged, recalled, water-damaged, or otherwise unsafe battery packs. Follow applicable lithium-battery handling, isolation, storage, and disposal procedures.
Use the tool in a controlled battery-service environment with appropriate electrical isolation, fire-resistant work surfaces, protective equipment, and battery containment procedures. Verify polarity and connector orientation before making any connection. Never force a connector or connect the tool to a battery model that has not been confirmed compatible.
After any service-state recovery, verify pack data again and perform controlled validation before returning the battery to flight operations. Monitor for abnormal temperature rise, voltage drift, rapid self-discharge, inconsistent state-of-charge readings, or recurring fault codes.
Confirm fitment by part number before ordering. Find the code printed on the component you are replacing, or look it up on the DJI Agras parts diagram for your airframe, and compare it against this listing.
Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.
Visually similar is not the same. DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.
Verified fitment for this listing: DJI Agras T50. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.
Not sure? Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.
These are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.
Power down completely and disconnect the flight batteries before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.
Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the Battery Service Unlock Dongle P100 V2 is easier to fit correctly when you can see how the original sat.
Observe ESD precautions. Ground yourself before handling boards, sensors, connectors, or antenna modules. Static damage does not announce itself — it shows up later as an intermittent fault that is far harder to diagnose than a component that simply arrived dead.
Seat every connector fully and restore the original strain relief. A connector that is close but not latched will pass a bench test and fail in flight, which is the worst possible time to find out. Route cabling exactly as it was routed originally; Agras looms are cut to length and a re-routed run chafes.
Test before you spray. Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.
If the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.
DJI Agras batteries are expensive mission-critical assets. Professional battery repair requires more than replacing a board or balancing cells; it also requires validating the battery-management system and confirming that protection logic, communication, and state reporting are functioning correctly. A dedicated service interface gives technicians another layer of access within that larger diagnostic process.
Canonical product name: DJI Agras T40 / T50 P100 V2 Battery Service Dongle
Component: Intelligent battery service interface
System: Battery diagnostics and repair
Primary function: Technician-level battery communication and service-state recovery
Condition: New
Product category: Diagnostic Tools
Seller: Ares Acres LLC
Also searched as: Agras P100 V2, DJI battery unlock tool, T50 battery service dongle, T40 battery repair interface, Agras battery recovery tool
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Ares Acres
Ares Acres LLC
Free and fast shipping within the United States on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.
We ship from the U.S., not from overseas. That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.
New condition, correctly described. We describe what we ship and we do not overstate it. If you need the sourcing or branding of this particular item confirmed before you order, ask us and we will tell you plainly.
Ordered the wrong part? Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.
Need help identifying a part? Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.
Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.
What is the P100 V2?
It is a specialized technician service interface for compatible DJI Agras intelligent battery systems.
Does this repair a damaged battery by itself?
No. It is a service interface. Physical, electrical, cell, connector, and BMS faults must be diagnosed and repaired independently.
Can it make an unsafe battery safe?
No. Batteries with swelling, leakage, impact damage, thermal damage, or internal electrical faults should not be returned to service simply because a protection state can be changed.
Is this intended for normal drone operators?
No. It is intended for qualified technicians and battery-service facilities.
How should compatibility be confirmed?
Confirm battery model, BMS generation, connector type, service workflow, and required interface hardware before ordering.
Will this fit my aircraft?
This part is supplied for the DJI Agras T50. Confirm against your model's DJI Agras parts diagram before ordering. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.
How fast does it ship, and where does it ship from?
It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.
Can I install the Battery Service Unlock Dongle P100 V2 myself?
Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.
What if I order the wrong part?
Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.
Do you stock other parts for this aircraft?
Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

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