GNB 550mAh 2S 7.4V 90C Long Type LiPo Battery with XT30 Connector for Micro FPV Drones

Take your indoor racing, micro freestyle, and tight gap-shooting to the next level with Gaoneng’s premium power cells. The GNB 550mAh 2S Long Type Battery is widely recognized in the FPV community as the gold standard for high-performance micro quads that demand an aggressive power-to-weight ratio.

High-Discharge Power & Zero Voltage Sag : 

With a continuous 90C rating, this 2S battery pack provides the punch required for sudden throttle recoveries, punch-outs, and stable cinematic maneuvers. It sustains voltage exceptionally well throughout the flight cycle, ensuring your micro drone doesn't feel sluggish toward the end of your pack.

Optimized Long Form Factor : 

The slim, prolonged shape (12mm x 18mm x 69mm) is engineered specifically to slide smoothly into micro frames and elastic straps where standard blocky packs won't fit. By lowering the profile, it reduces aerodynamic drag and balances center-of-gravity (CG) on lightweight setups.

Premium Build Quality:

Fitted with premium-grade 20AWG silicone wire, an industry-standard XT30 discharge plug, and a JST-XH balance connector, this pack is built to withstand high-current demands and repeated field charging. It supports rapid charging protocols from 1C up to 5C when paired with a quality balance charger.

Target Compatibility : 

Perfect drop-in replacement or upgrade for popular micro platforms including:

• Emax Tinyhawk II / Tinyhawk III (2S configurations)

• GEPRC TinyGo / iFlight CineBee / TurboBee

• Happymodel Crux3 / BetaFPV Beta75X / Beta75 Pro

• Custom 2-inch to 2.5-inch micro freestyle builds and toothpicks

Specification : 

• Brand: Gaoneng (GNB)

• Battery Type: Lithium Polymer (LiPo)

• Configuration: 2S1P / 2 Cells / 7.4V

• Nominal Capacity: 550mAh

• Continuous Discharge Rate: 90C

• Burst Discharge Rate: 180C

• Discharge Connector: XT30

• Balance Connector: JST-XH (3P)

• Discharge Wire Gauge: 20AWG High-Flex Silicone

• Dimensions: 12mm x 18mm x 69mm (H x W x L)

• Net Weight: 30g (+/- 2g)

• Charge Rate: 1C to 3C recommended (5C max fast charge)

• Cycle Life: 300+ times

Frequently Asked Questions : 

Q1: Can I charge this battery using a standard 1S whoop charger?

Ans: No, this is a 2S (7.4V) battery pack and requires a dedicated LiPo balance charger equipped with an XT30 port and a 2S JST-XH balance board to ensure safe, even charging across both cells.

Q2: What is the recommended charge rate for the GNB 550mAh 2S battery?

Ans: For maximum battery longevity, we recommend charging at 1C to 2C (0.55A to 1.1A). In a rush at the field, it can safely handle fast charging up to 5C (2.75A) with a premium balance charger.

Q3: Will this battery fit a standard Beta75X or Tinyhawk frame?

Ans: Yes, its "Long Type" slim layout (12mm x 18mm x 69mm) is optimized specifically to slide straight into micro 2S whoop and toothpick battery slots or flexible rubber bands without modifying the frame.

Q4: What should I set my low-voltage alarm to on Betaflight for this pack?

Ans: To preserve the lifespan of your LiPo cells, we recommend setting your Betaflight warning voltage to 3.5V per cell (7.0V total for 2S) and landing immediately once it hits 3.3V under load.