Q: Who is this battery best for?

A: This battery is ideal for pilots flying micro to lightweight 3–4 inch FPV drones who want a balance of punch, weight, and flight time.

Q: What drone size does it match?

A: Perfect for 2S–4S builds, especially toothpick, cinewhoop, and lightweight freestyle drones.

Q: Is it beginner-friendly?

A: Yes. It’s lightweight and easy to manage, making it suitable for beginners while still offering enough performance for experienced pilots.

Q: How long is the flight time?

A: Flight time depends on your setup, but typically ranges from 3 to 6 minutes depending on throttle usage and build efficiency.

Q: Does it provide strong power output?

A: Yes. The 75C discharge rate delivers responsive throttle and stable power for freestyle and smooth cruising.

Q: Is it safe and durable?

A: Built with high-quality cells and solid packaging, it offers good durability when used properly. Avoid over-discharging or physical damage.

Q: What connectors are available?

A: Check the product specs—commonly BT2.0 / XT30 depending on version. Make sure it matches your drone.

Q: Is it good for freestyle or cruising?

A: It performs well for both. Lightweight builds get smooth cruising, while higher KV setups still get decent punch for freestyle.

Q: What is the recommended voltage cutoff?

A: Stop flying at around 3.5V per cell under load to extend battery lifespan.

Q: What charger should I use?

A: Use a balance charger that supports LiPo batteries and matches your cell count (2S/3S/4S).

Q: Can I use it on high KV motors?

A: Yes, but monitor temps and voltage sag. High KV setups may reduce lifespan if pushed aggressively.

Q: How should I store the battery?

A: Store at ~3.8V per cell in a cool, dry place.

Q: What are common mistakes to avoid?

A: Over-discharging, overcharging, and using the wrong connector are the most common issues.

Q: Why is my battery swelling?

A: Usually caused by over-discharge, overcharge, or excessive load.

betafpv lava 2s3s4s 550mah 75c battery 2pcs 4s 8.36wh

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BETAFPV LAVA 550mAh 75C 2S/3S/4S Battery (2PCS) for Micro FPV Drones

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Top highlights

High-performance LAVA series battery with 75C discharge for strong burst power.
550mAh capacity optimized for 2S, 3S, and 4S micro FPV and toothpick drones.
Low internal resistance reduces voltage sag during aggressive throttle input.
Lightweight design improves agility, flight time, and overall control.
2PCS pack ideal for freestyle practice and fast battery swaps.

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Explosive Power Output-75C High Discharge for Instant Throttle Response

Engineered with a 75C high discharge rate, this battery delivers powerful and consistent burst performance, giving your FPV drone faster acceleration and more responsive control during aggressive maneuvers. Perfect for freestyle and racing pilots who demand instant power when it matters most.

High Efficiency Output with Reduced Internal Resistance

Built with low internal resistance, the LAVA battery minimizes voltage sag under high throttle, ensuring smoother flights and stable power delivery. This means better control, cleaner lines, and improved flight confidence even in demanding conditions.

betafpv lava 550mah 75c z folding z folding

Z-Folding Process

The Z-Folding Process Battery demonstrates remarkable performance and versatile capabilities. Leveraging its low internal resistance, it enables efficient high-current discharge within shorter time frames, resulting in elevated discharge platforms. Compared to the Winding Process Battery, it achieves a 0.2V higher discharge platform under equivalent loads, ensuring consistent and robust power output, additionally, it boasts a 5% higher energy density within the same volume, accompanied by an extended cycle life. The Z-Folding Process allows precise customization of electrode sizes based on lithium battery dimensions, optimizing control over battery size and shape. Its battery performance is superior, with a wider range of options for appearance and shape, and its applicability is also broader compared to the Winding Process Battery.

Bullet Point:

● Featuring the Z-Folding Process, it achieves a 5% energy density upgrade compared to the Winding Process, extending flight time and reducing battery replacement inconvenience.

● With a boosted discharge rate of 75C, it provides greater burst power for superior flight performance and maneuverability for unparalleled control.

● With an extended battery cycle life, it ensures prolonged power support, bringing users sustained and reliable performance.

● All-new LAVA Series Battery, featuring a new design that symbolizes explosive power akin to molten lava.

BETAFPV LAVA 550mAh 75C Battery Buying Guide

The BETAFPV LAVA 550mAh 75C battery is a compact LiHV pack for micro FPV, toothpick and lightweight cinewhoop builds using an XT30 connector. Although BETAFPV manufactures 2S, 3S and 4S versions, this MEPSKING listing currently offers the 4S 550mAh version as a 2PCS pack.

MEPSKING Expert Test Assessment

MEPSKING analyzed the supplied hands-on flight comparison and controlled battery-analyzer results for the LAVA 550mAh cell family. In the analyzer test, four LAVA packs produced closely grouped discharge curves and delivered nearly 600mAh during a 15C test—more than their stated 550mAh capacity under that test method. Pack-to-pack consistency was one of the strongest results.

The outdoor comparison also showed better throttle recovery and less voltage collapse than older standard BETAFPV packs when fighting wind or recovering from dives. However, the comparison batteries were approximately six months old, so the complete improvement cannot be attributed only to LAVA chemistry.

A separate burst test calculated about 44C using the reviewer's own method. This is not directly comparable with BETAFPV's advertised 75C procedure. Our expert conclusion is that the evidence supports good usable capacity, consistent cells and competitive power density, but the 75C figure should still be presented as a manufacturer-rated discharge specification.

LAVA 550mAh vs 450mAh: Which Should You Buy?

Specification	LAVA 4S 550mAh	LAVA 4S 450mAh
Nominal Voltage	15.2V LiHV	15.2V LiHV
Energy	8.36Wh	6.84Wh
Published Weight	56.5g	49.4g
Best Choice When	Longer flight time and more usable capacity are priorities	Lower weight and sharper handling are priorities

Choose the 550mAh pack for cruising, cinematic flying or builds that can comfortably carry the additional 7.1g. For a lighter and more agile setup, compare the BETAFPV LAVA 450mAh 75C Battery.

2S, 3S or 4S: How to Choose

● 2S: Intended for compatible 85mm whoops and low-voltage micro builds where smooth power and low weight matter most.

● 3S: A balanced option for compatible 2–3-inch cinewhoops that need more authority without the full weight and RPM of 4S.

● 4S: Choose this for a motor and ESC specifically rated for 4S when stronger acceleration and higher RPM are required. The current MEPSKING listing sells this version.

Charging and Compatibility

Use a balance charger with a dedicated LiHV mode. The 4S pack reaches 17.4V when charged to 4.35V per cell. Confirm that the drone supports 4S input, uses an XT30 connector and has enough battery-bay clearance for the 67 × 15.5 × 26mm pack.

Choose the LAVA 4S 550mAh when you want more endurance than a 450mAh pack without moving to a much larger micro-FPV battery. Store it at approximately 3.8–3.9V per cell and discontinue use if the pack becomes swollen, damaged or abnormally hot.

Size:

The below picture shows the dimensions of the 2S 550mAh 75C Battery.

The below picture shows the dimensions of the 3S 550mAh 75C Battery.

The below picture shows the dimensions of the 4S 550mAh 75C Battery.

The below picture shows the discharge report of the 3S 550mAh 75C Battery.

betafpv lava 2s3s4s 550mah 75c battery 2pcs discharge report of 3s

Specification

● Items: LAVA 2S/3S/4S 550mAh 75C Battery

● Capacity: 550mAh

● Dimension: 67*15.5*13.5mm(2S), 67*15.5*20mm(3S), 67*15.5*26mm(4S)

● Weight: 29.5g(2S), 43.2g(3S), 56.5g(4S)

● Power: 4.18Wh(2S), 6.27Wh(3S), 8.36Wh(4S)

● C-Rate: 75C

● Battery Type: LiHV

● Voltage: 7.6V(2S), 11.4V(3S), 15.2V(4S)

● Charge Plug: JST-XH2.54 Plug

● Connector: XT30 with 16AWG silicone wire

Recommended Products

● BETAFPV BT2.0 1S Charger and Voltage Tester V2 for Whoop Batteries

● BETAFPV LAVA 450mAh 75C 2S/3S/4S Battery – 2PCS

● Flywoo XT30UP Male Power Pigtail – 2PCS

● MEPS Fireproof LiPo Battery Safety Bag

● TBS Smoke Stopper with XT30/XT60 Support

Recommendations

More expert advice

Complete FPV Drone Parts List for Beginners

How to Choose LiPo Batteries for FPV Drone

Choosing a Charger for FPV Drones

Reviews

m*******e
Verified

Excellent little LiHV batteries for cinewhoop setups. The packs stay cooler than expected and charging has been very stable so far. I also appreciate that mepsking shipped them quickly without damage.

Options：2S

Purchased 2 times
t***********e
Verified

Very impressive little batteries for lightweight freestyle builds. Voltage sag is noticeably lower than some older packs I used before, and throttle response feels much more consistent during punch outs. The weight is also very reasonable for the performance.

Options：2S

Purchased 2 times
V******M
Verified

Franchement très bonnes batteries, bonne puissance et assez stable 👍

Options：3S
a*****w
Verified

Image quality is nice but the goggles needed some adjustment before feeling comfortable. Overall still a good analog FPV experience.

Options：2S
f********8
Verified

Really solid batteries for aggressive freestyle flying. The discharge feels strong and responsive, especially compared to some cheaper packs I tried before. Internal resistance also seems decent so far.

Options：2S

Purchased 3 times
Additional reviews after 21 days
Performance is still very consistent after repeated charging.
M********d
Verified

Nice balance between power and weight. Works well across different setups. Mepsking shipping was quick and smooth.

Options：3S

Purchased 2 times
c**********V
Verified

Good balance between power and weight for micro cinematic drones. I mainly use the 3S version on a Pavo build and it gives smooth throttle control without getting too hot after flights. Packaging from mepsking was also secure.

Options：2S
F*****x
Verified

Gute Akkus, leicht und zuverlässig. Preis-Leistung passt.

Options：4S

FAQ Feel free to ask us any questions

Q: Who is this battery best for?: A: This battery is ideal for pilots flying micro to lightweight 3–4 inch FPV drones who want a balance of punch, weight, and flight time.
Q: What drone size does it match?: A: Perfect for 2S–4S builds, especially toothpick, cinewhoop, and lightweight freestyle drones.
Q: Is it beginner-friendly?: A: Yes. It’s lightweight and easy to manage, making it suitable for beginners while still offering enough performance for experienced pilots.
Q: How long is the flight time?: A: Flight time depends on your setup, but typically ranges from 3 to 6 minutes depending on throttle usage and build efficiency.
Q: Does it provide strong power output?: A: Yes. The 75C discharge rate delivers responsive throttle and stable power for freestyle and smooth cruising.