Gens Ace 3800mAh 7.4V 2S LiPo Transmitter Battery with JST Plug – GEA2S3800TXJS

The Gens Ace 3800mAh 7.4V 2S LiPo Transmitter Battery provides rechargeable power for compatible RC radios. Designed for transmitter applications, it combines a generous capacity with a compact soft-case format and a JST-SYP power connector.

Whether you are flying, racing or practising model setups, this pack offers a practical replacement or spare battery for transmitters that support a standard two-cell LiPo supply. Gens Ace identifies the FrSky Taranis Q X7 as an intended application, subject to the requirements of your particular transmitter version.

3800mAh Capacity

The 3800mAh capacity provides a useful power reserve for regular transmitter use. Actual operating time depends on your radio’s power consumption, screen brightness, RF module and connected accessories.

For busy days at the track or flying field, a rechargeable transmitter pack makes it convenient to prepare your radio alongside your other RC equipment.

7.4V Two-Cell LiPo Configuration

This battery uses a 2S1P configuration, supplying 7.4V nominal voltage and 8.4V when fully charged. Your transmitter must support the full voltage range of a standard 2S LiPo battery.

Where available, select the appropriate battery type and low-voltage alarm settings in your radio according to its instructions.

Compact Soft-Case Design

The flat pack measures approximately 70 × 52 × 18.5mm, making it suitable for compatible transmitter battery compartments. Check the available space before installation, allowing clearance for the leads and connectors.

Secure the pack so it cannot move inside the compartment, and route the wiring to prevent it from being pinched when the battery cover closes.

JST Power and Balance Connections

The fitted JST-SYP main connector connects to a compatible transmitter battery input. A separate JST-XH three-pin balance lead allows individual cell monitoring during balance charging.

Confirm the main connector type and polarity before fitting, as transmitter battery connections vary between models.

Key Features

• 3800mAh capacity for compatible transmitter applications.

• 7.4V nominal voltage with a standard 2S LiPo configuration.

• JST-SYP main power connector.

• JST-XH three-pin balance connector.

• Compact soft-case construction.

• Intended for compatible FrSky Taranis Q X7 installations.

• Practical replacement or spare transmitter battery.

Specifications

Transmitter Compatibility

Suitable for transmitters that accept 2S LiPo batteries, provide sufficient compartment space and use a compatible power connection. Confirm the battery requirements of your particular FrSky Q X7 version or other radio before installation.

Package Contents

• 1 × Gens Ace 3800mAh 7.4V 2S LiPo transmitter battery with fitted power and balance leads.

Required for Use

• Compatible RC transmitter.

• Balance charger supporting standard 2S LiPo batteries.

• Suitable JST-SYP charging lead.

Charging Note: Use the charger’s standard 2S LiPo programme and follow the battery’s supplied charging instructions. Use in-radio charging only where the transmitter manufacturer explicitly supports this battery type.