will it operate a 540 820 watt brushless 12v motor

Yes but it really depends on speed controller and load. Motors don’t have a minimal voltage. They kinda have a maximum but a lot more is determined by load. A 540 motor in a Rc cars weighing 8lbs will run about 40mph on 3s but a 540 motor in a hub motor on a scooter or e-bike will need a lot more to run for a rider 80lbs.

Do these fit in the forward tray on the trx4?

check the size of your existing battery and compare it to the specs on the advertised battery. or measure the battery tray in the model and order that size.

will these work on a 1/10 scale crawler?

Yes it will. I have it in my gen 7 pro and it's good. But go bigger than this, I only used it for a spare.

Are they Graphene batteries. I don't see anywhere on the pack say graphene.

I am not sure what you are talking about as the battery label states they area are graphene. Whether this is true per the label I don't know

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Zeee 11.1V 120C 1500mAh 3S RC Lipo Battery Graphene Battery with XT60 Plug for FPV Racing Drone Quadcopter Helicopter Airplane RC Boat RC Car RC Models(2 Pack)

Zeee 11.1V 120C 1500mAh 3S RC Lipo Battery Graphene Battery with XT60 Plug for FPV Racing Drone Quadcopter Helicopter Airplane RC Boat RC Car RC Models(2 Pack)

Product ID: 163023744

Details

Battery Capacity
1500
Battery Cell Composition
Lithium
Brand
Zeee
Number of Batteries
2 Lithium
Recommended Uses For Product
Bicycle

⚡120C ultra-high discharge rate

📏Compact 68x34.5x27.5mm size

🔋1500mAh long-lasting capacity

Description

⚡ Power your passion, dominate the race! 🚀

PRECISION FIT PLUG - Compact 3S design with XT60 plug guarantees seamless compatibility with top-tier RC models.
RACE READY POWER BOOST - 120C discharge rate delivers explosive acceleration for your FPV drone or RC car.
ENDURANCE THAT OUTLASTS - 1500mAh capacity ensures longer flight and playtime, keeping you ahead of the pack.
GRAPHENE TECH ADVANTAGE - Advanced graphene battery chemistry for enhanced cycle life and consistent voltage output.
PLUG PLAY CONVENIENCE - Comes as a 2-pack with reliable XT60 connectors—ready to power your next adrenaline rush.

The Zeee 11.1V 120C 1500mAh 3S Graphene Lipo Battery is engineered for high-performance RC enthusiasts, offering a powerful 120C discharge rate and a robust 1500mAh capacity in a compact form factor. Equipped with an XT60 plug, this 2-pack battery set ensures compatibility with a wide range of drones, quadcopters, RC cars, boats, and helicopters, delivering longer runtimes and superior cycle life thanks to advanced graphene technology.

Specifications

ASIN	B07Y67MKQB
Amperage	4.2 Amps
Antenna Location	Bicycle
Battery Capacity	1500
Battery Cell Type	Lithium Polymer
Battery Weight	4.73 Ounces
Best Sellers Rank	#185,574 in Toys & Games ( See Top 100 in Toys & Games ) #1,466 in Hobby Remote & App Controlled Vehicle Batteries
Brand	Zeee
Customer Reviews	4.6 4.6 out of 5 stars (988)
Item Dimensions	2.68 x 1.36 x 1.08 inches
Item Weight	4.73 Ounces
Manufacturer	Zeee
Model Name	RC Battery
Model Number	11.1V 120C 1500mAh
Number of Batteries	2 Lithium Polymer batteries required.
Reusability	Rechargeable
UPC	732694358197 742089361725 732694357794 740939788364
Unit Count	2.0 Count
Voltage	11.1 Volts

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