The BETAFPV BT2.0 300mAh 1S 30C battery is engineered to deliver higher efficiency, stronger power output, and longer flight time for 1S FPV drones. With an upgraded BT2.0 connector and optimized internal design, it significantly outperforms traditional PH2.0 batteries in both performance and durability.
Upgraded 1.0mm banana connector reduces internal resistance and improves conductivity
Supports 9A continuous / 15A burst current, nearly double the output of PH2.0
Minimizes voltage sag for more stable power and fewer low-voltage warnings
More efficient discharge for longer and smoother flight performance
Durable connector design for repeated high-current usage
Up to 2 minutes full-throttle flight time (Meteor65 test)
Bundle and save up to $3.50 on gear — upgrade your setup for less.
BETAFPV 0702 Brushless Motors (2026) for 65mm FPV Whoop 1S
Options (3)
Champion 36000KV
Racing 30000KV
Freestyle 25000KV
Champion 36000KV
$46.49
Save $3.50
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Expected ship within 5 days after order.
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Top highlights
BT2.0 connector reduces voltage sag and improves throttle response on 1S FPV whoops.
300mAh capacity balances flight time and lightweight performance for indoor racing.
30C continuous discharge delivers smooth and consistent power output.
Optimized for BETAFPV whoops and most BT2.0-compatible 1S micro drones.
8-pack bundle for convenient battery rotation and longer flying sessions.
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BT2.0 Connector for Stronger 1S Power
The BT2.0 connector is designed to improve power delivery for 1S FPV drones by reducing voltage sag and increasing conductivity. Compared to traditional PH2.0 plugs, it maintains a more stable voltage output throughout the flight.
Smoother throttle response and better control. More stable voltage under load. Improved overall flight efficiency.
Check out our Whoop Drone Battery, all FPV Battery Collection and the rest of our BETAFPV Products!
Higher Current Output for Maximum Performance
With support for 9A continuous and 15A burst current, the BT2.0 300mAh battery delivers nearly double the power of PH2.0 connectors. This allows your drone to perform at its full potential without power limitations.
Stronger punch-outs and faster acceleration. More responsive flight performance, ideal for racing and freestyle Tiny Whoop drones
Difference between BT2.0 battery and PH2.0 battery:
As we can see, the BT2.0 300mah 1S battery is adopted with the 1.0mm banana connector while the PH2.0 battery is the crimped pins. Also, it is a bit longer than the original PH2.0 battery, which is marked BT2.0 on the label.
Reduced Voltage Sag for Longer Flight Time
By lowering internal resistance with its upgraded 1.0mm banana connector design, the BT2.0 battery improves discharge efficiency and reduces energy loss during flight. Fewer low-voltage warnings, more usable battery capacity, up to 2 minutes full-throttle flight time (Meteor65 test) The discharge current is 9A in this testing. You could see that it has double time ( about 2minutes) and a 0.2v improvement in voltage sag with BT2.0 connector.
BETAFPV BT2.0 300mAh 1S 30C Battery Buying Guide
Choosing a 1S Whoop battery is mainly about finding the right balance between weight, flight time, power delivery, and connector compatibility. The BETAFPV BT2.0 300mAh 1S 30C Battery is designed for pilots who want a lightweight battery with stable power output for compatible 1S micro FPV drones.
Is This 300mAh 1S Battery Right for Your Drone?
Choose this battery if your drone:
-Uses a 1S 4.35V LiHV battery
-Has a BT2.0 battery connector
-Is designed for a lightweight 1S Whoop or micro FPV setup
-Can accommodate a battery measuring 67.3 × 11.8 × 6.1mm
-Benefits from a lightweight battery of approximately 8.28g
It is especially suitable for BETAFPV Whoops and other BT2.0-compatible 1S micro drones.
Best For
- Indoor Whoop Flying
The 300mAh capacity keeps the battery light enough for responsive indoor flying.
- 1S Racing
The lightweight design and BT2.0 connector help maintain responsive throttle control.
- Lightweight Freestyle
A good option when you want a balance between flight time and agility rather than simply choosing the largest battery.
Before You Buy
Check the connector first. This battery uses a BT2.0 connector, not PH2.0. If your drone uses PH2.0, do not assume the battery will plug in directly. You need a compatible BT2.0 setup or an appropriate adapter.
300mAh vs 450mAh: Which 1S Battery Should You Choose?
For a 1S Whoop, more capacity does not automatically mean better performance. A larger battery also adds weight.
Choose 300mAh if:
Lightweight performance is your priority. It is a good choice for indoor flying, racing, and lightweight 1S builds where you want the drone to remain agile and responsive.
Choose 450mAh if:
You want more flight time and don't mind additional weight. For longer outdoor sessions, a higher-capacity 1S battery may be a better fit.
Quick rule:
→ 300mAh = lighter & more agile
→ 450mAh = longer flight time
Why Choose BT2.0 Instead of PH2.0?
The connector can have a noticeable effect on a small 1S drone because even a relatively small amount of resistance matters when current demand is high.
The BETAFPV BT2.0 connector uses a 1.0mm banana-style contact design instead of the crimped-pin design used by traditional PH2.0 connectors. BETAFPV states that BT2.0 supports up to 9A continuous and 15A burst, compared with 4.5A continuous for PH2.0.
In practical terms, BT2.0 is intended to provide:
-Less voltage sag
-More stable voltage under load
-Better throttle response
-More efficient power delivery
-A more durable connection for repeated use
If your 1S Whoop already uses BT2.0, choosing a BT2.0 battery avoids the need to compromise the power system with an incompatible connector.
BT2.0 is a game changer compared to PH2.0. Much less voltage sag. Getting a solid 3-4 mins of flight on my Meteor65. This 8-pack is a great deal, well packed.
Options：BT2.0 300mAh 1S 30C (8PCS)
T***********y
Verified
BT2.0 is a game changer compared to PH2.0. Much less voltage sag. Getting a solid 3-4 mins of flight time on my Meteor65. This 8-pack is a great deal, well packed and none of the cells were puffed.
Options：BT2.0 300mAh 1S 30C (8PCS)
L**********n
Verified
Good consistent output for whoops, easy to plug in and use. Flight time is short if you fly aggressively, but still reliable for daily indoor use.
Options：BT2.0 300mAh 1S 30C (8PCS)
T**********y
Verified
BT2.0 is a game changer compared to PH2.0. Much less voltage sag. Getting a solid 3-4 mins of flight time on my Meteor65. This 8-pack is a great deal, well packed and none of the cells were puffed.
Options：BT2.0 300mAh 1S 30C (8PCS)
T**************e
Verified
I’m new to FPV and everyone told me to get BT2.0. Glad I did. This 8-pack is a great value. Arrived earlier than expected and my flight times are much more consistent now compared to the old PH2.0 connectors.
Options：BT2.0 300mAh 1S 30C (8PCS)
C*********y
Verified
good pack for the price. got 8pcs and all working fine. shipping was quick and packed really well. no complaints.
Options：BT2.0 300mAh 1S 30C (8PCS)
Additional reviews after 10
days
had one battery damaged after a crash, contacted support and they responded fast. appreciate that.
W**********r
Verified
Just received the pack today. Everything was clean and well packed, no damage at all. The batteries look really nice and feel solid in hand. Fits perfectly with my whoop build.
Options：BT2.0 300mAh 1S 30C (8PCS)
M**********E
Verified
Sehr gute Akkus für 1S Whoop. Power output ist stabil und Flugzeit ist besser als meine alten Packs. Packaging was also really good, nothing damaged.
Options：BT2.0 300mAh 1S 30C (8PCS)
Additional reviews after 10
days
After multiple charge cycles, performance still consistent. Good quality overall.
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FAQFeel free to ask us any questions
Q: Is this battery compatible with PH2.0 connectors?
A: No, this battery uses a BT2.0 connector and requires a BT2.0-compatible FC or adapter.
Q: What drones are these batteries best for?
A: They are ideal for 1S whoop drones and micro FPV builds designed for BT2.0 connectors.
Q: Does BT2.0 really improve flight performance?
A: Yes, BT2.0 reduces voltage sag, resulting in stronger punch and more stable throttle response.
Q: Can I use these batteries for outdoor flying?
A: Yes, they work well for both indoor and light outdoor 1S FPV flights.
Q: How many batteries are included in the package?
A: Each pack includes 8 pieces of BT2.0 300mAh 1S batteries.
BETAFPV 0702 Brushless Motors (2026) for 65mm FPV Whoop 1SChampion 36000KV$46.49 Save $3.50
Verified