Overview
The Gens ace 4000mAh 2S 7.4V TX LiPo battery pack is designed as a transmitter (TX) battery for compatible RC radios using a JST-EHR main plug and JST-XH balance connector. The pack is labeled TX 7.4V - 29.6Wh and 4000mAh, and is intended to fit transmitter battery trays such as Radiomaster TX16 and Spektrum DX-series transmitters.
Key Features
- Capacity: 4000mAh (2S1P LiPo)
- Connectors: JST-EHR (main) + JST-XH (balance)
- Brand-stated points: stacking technology for 4000mAh capacity, high energy density, Japan/Korea lithium polymer raw materials
- Max burst discharge rate: 2C
Specifications
| Brand | Gens ace |
| Battery type / use | TX (transmitter) LiPo battery pack |
| Capacity | 4000mAh |
| Capacity range | 3000-5999mAh |
| Configuration | 2S1P |
| Voltage | 7.4V |
| Energy (label) | 29.6Wh |
| Discharge rate (C) | TX |
| Max burst discharge rate (C) | 2C |
| Main connector type | JST-EHR |
| Balancer connector type | JST-XH |
| Wire gauge | 20# |
| Discharge wire length | 80mm |
| Dimensions | 72 x 52 x 20mm (L x W x H) |
| Length tolerance | ±5mm |
| Width tolerance | ±2mm |
| Height tolerance | ±2mm |
| Net weight | 147g (±20g) |
| Over 300Wh | No |
| Quantity per box | 32 pcs/box |
For compatibility questions (plug type, fitment, and charging setup), contact https://rcdrone.top/ or email support@rcdrone.top.
Applications
- Radiomaster TX16 transmitter
- Spektrum DX9 / DX8 / DX7S / DX7 transmitters
Manuals
Warnings
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Details

The Gens ace 4000mAh 2S 7.4V TX LiPo pack is sized for a transmitter battery bay and includes a lead for easy connection.

The Gens ace 4000mAh 2S 7.4V LiPo pack fits neatly in the transmitter battery compartment with the lead wires routed below.
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