WB37 Control Battery | Remote Controller Battery | Controller Power Cell | Control System Power Component | Field-Ready OEM Replacement Component
🇺🇸 U.S.A. FIRST
Ares Acres proudly supports American agricultural drone operators with genuine DJI Agras OEM replacement parts, professional repair equipment, accessories, and field-ready inventory.
FREE & FAST Shipping is included for all U.S. customers.
Operators plan aircraft battery logistics down to the minute — charge cycles, generator schedules, swap rotations. But there's a second battery that can end a spray day just as fast, and it's the one in the operator's hands: the WB37 powering the remote controller.
A controller battery that has aged out changes the math of a working day. Runtime that used to cover a full session now dies mid-afternoon, charge levels drop faster than the readout promises, and the operation that carefully staged aircraft power ends up grounded by the controller — with acres left and daylight burning.
That is why Ares Acres keeps hard-to-find OEM control power hardware in stock and shipped fast to the U.S.A., helping operators keep their command station running as long as their aircraft, minimize downtime, and keep spraying when every acre counts.
For professional farmers, aerial applicators, and commercial drone operators, a fresh WB37 in the controller — and a charged spare in the truck — is what a full spray day runs on.
✅ DJI Agras T50 / T40 Compatibility Guarantee
- 🇺🇸 USA Compatibility Guarantee
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📦 Package Includes
- 1 × DJI Control Battery WB37
- Premium OEM controller power component
- Direct-fit replacement battery
- Protective packaging
🔧 Component Overview
The DJI T50 - T40 Original Control Battery WB37 is the remote controller battery for DJI Agras T50 and T40 operations.
The WB37 delivers stable, reliable power to the control system — keeping the remote controller running through extended field operations, session after session. Engineered from durable, high-grade materials for agricultural duty, a fresh battery restores full controller runtime the moment an aged one comes out.
Commercial agricultural drones operate in demanding environments every day, including:
- Crop spraying
- Liquid fertilizer application
- Long-duration field sessions
- Multi-battery aircraft rotations
- Orchard operations
- Vineyard spraying
- Precision agriculture missions
- Daily commercial deployments
- Fleet operations
- High-acreage contract work
Throughout these operations, controller batteries are routinely exposed to:
- Daily charge and discharge cycles
- Heat exposure in summer field conditions
- Cold-weather capacity stress
- Long continuous-drain sessions
- Storage at varied charge states
- Dust and field grit at the contacts
- Handling and swap wear
- Moisture and humidity exposure
- Transport vibration
- Long commercial operating seasons
Over time, this duty ages cells, shrinks usable capacity, and wears contacts — and an aged controller battery means a command station that quits before the day does.
The WB37 Control Battery helps maintain:
- Stable, consistent controller power
- Full-session runtime in the field
- Reliable charge-level behavior
- Confident all-day operations
- A hot-swap spare in the rotation
- Two-model fleet coverage
- Increased fleet readiness
- Maximum aircraft uptime
- Reliable commercial operation
For operators commanding aircraft through long field days, controller power integrity is non-negotiable.
⚙️ Functional Purpose
The WB37 Control Battery is designed to power the remote controller for DJI Agras T50 and T40 operations.
The component helps:
- Deliver stable power to the control system
- Sustain the controller through extended sessions
- Keep charge behavior predictable and reliable
- Support all-day command of the aircraft
- Enable quick swap-and-go battery rotation
- Replace aged, swollen, or fading batteries
- Restore factory controller runtime
- Install in seconds with a direct fit
- Maintain correct fitment for T50/T40 controllers
- Support preventative battery rotation
- Increase fleet readiness
- Keep control power field-ready
- Back up the primary with a charged spare
Every minute of every mission, the controller draws on this battery — and the operation only runs as long as the command station does.
A healthy WB37 keeps the controller alive through the longest field days, season after season.
An aged or damaged controller battery may contribute to:
- Runtime fading mid-session
- Charge readings that drop unpredictably
- Controller shutdowns in the field
- Sessions cut short with acres remaining
- Slow or unreliable charging
- Power-related controller faults
- Interrupted spraying missions
- Unexpected downtime
- Reduced fleet reliability
Replacing an aged battery restores the controller endurance the operation was planned around.
⚠️ Common Replacement Indicators
Replacement may be recommended when operators observe:
- Noticeably shorter controller runtime
- Charge percentage dropping in jumps
- Battery draining quickly in standby
- Swollen or deformed battery body
- Battery running hot in normal use
- Slow or incomplete charging
- Worn or corroded contacts
- Controller power faults or shutdowns
- High cycle-count batteries
- Batteries stored long-term at full or empty charge
- Maintenance inspection findings
- Fleet battery rotation refresh
- Preventative pre-season replacement
- Long-term commercial use
Common causes of battery aging include daily charge cycling wearing the cells season after season, summer heat accelerating capacity loss, deep discharges stressing the chemistry, long storage at poor charge states, and contact wear from constant swapping — batteries age on a schedule whether operators track it or not, so experienced crews date their WB37s, rotate spares, and retire packs at the first real runtime drop.
For commercial operators, a fresh controller battery is almost always cheaper than the spray hours a dead command station costs.
📐 Specifications
Component Type: WB37 control battery / remote controller power component
Compatibility:
- DJI Agras T50 (remote controller)
- DJI Agras T40 (remote controller)
Package Quantity: 1 Battery
Installation Area: Remote controller battery bay
Function: Stable power delivery for the control system
Design: Direct-fit OEM controller battery
Construction: Durable, high-grade build for field duty
Mounting Type: Direct-fit OEM replacement component
Application: Agricultural drone control system power
🚜 Necessary For
This component is ideal for:
- DJI Agras T50 operators
- DJI Agras T40 operators
- Farmers operating spray drones
- Commercial spraying contractors
- Agricultural aviation companies
- Fleet maintenance managers
- Agricultural drone technicians
- DJI Agras service providers
- Drone repair facilities
- Commercial drone fleets
- Precision agriculture businesses
- Controller battery rotations
- Preventative maintenance programs
- Daily commercial operations
- Emergency repair inventory
- Professional agricultural drone operators
Especially valuable during:
- Spring spraying season
- Summer application windows
- Long multi-tank field sessions
- Control system service work
- Multi-aircraft fleet maintenance
- Seasonal battery refreshes
- Emergency replacements
- High-hour commercial operations
When the day is planned around aircraft batteries, keeping the controller battery fresh keeps operations moving.
💡 Why This Part Matters
Every operation has a power plan for the aircraft and almost none has one for the controller. Yet the WB37 ages exactly the way flight batteries do — cycle by cycle, summer by summer — and its failure is just as grounding: an aircraft with full batteries and no command station sprays nothing.
Controller battery decline is also the easiest to miss, because the controller usually makes it through short days. It's the long days — the peak-season, every-acre-counts days — that expose an aged pack, which means it fails precisely when the operation can least afford it. The crews that never think about controller power run dated batteries, keep a charged spare in the truck, and refresh on schedule.
The WB37 Control Battery helps maintain:
- A command station that outlasts the workday
- Predictable, trustworthy charge behavior
- Uninterrupted control through long sessions
- A hot spare ready in the rotation
- Two-model fleet coverage
- Professional fleet standards
- Increased aircraft uptime
- Reliable commercial performance
- Long-term operational confidence
Running an aged controller battery, operators risk:
- The controller dying with acres left
- Charge readouts that can't be trusted
- Sessions planned around a fading pack
- A grounded operation with charged aircraft
- Interrupted missions
- Unexpected downtime
- Lost spraying opportunities
- Reduced return on investment
For practical, hardworking operators, the value is simple:
Protect the power. Protect the controller. Protect the mission. Protect the season.
Professional DJI Agras operators understand that command of the aircraft starts with power in the operator's hands. Keeping a fresh WB37 in the controller and a spare on charge means full-day sessions all season — and that difference is what separates a good season from a frustrating one.
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