Overview
This 2-pack HRB 5S 18.5V 4000mAh LiPo battery set is designed for RC power systems where a matched 5S pack size, voltage, and connector are required. Each pack is rated at 74Wh with a 100C continuous discharge rate and includes a 7-pin balance port.
Key Features
- Cell configuration: 5S1P
- Continuous discharge rate: 100C
- Max discharge rate: up to 200C
- 10AWG silicone wire
- 7-pin balance port
- Pack size tolerance noted: 0–3mm (0.12in) difference
Specifications
| Brand | HRB |
| Battery type | Li-Poly (LiPo) |
| Cell count | 5S |
| Configuration | 5S1P |
| Voltage | 18.5V |
| Capacity | 4000mAh |
| Energy | 74Wh |
| Continuous discharge rate | 100C |
| Max discharge rate | Up to 200C |
| Charging rate | 2A–4A |
| Size (L x W x H) | 135 x 42 x 41mm (±0–3mm) |
| Size (inches) | 135mm/5.31in; 42mm/1.65in; 41mm/1.61in |
| Weight | 495g (approx. 17.46oz / 1.09lb) |
| Main plug / connector | XT60 (product title); EC5 (labeling shown); Deans female plug (provided text). Connector information is inconsistent—confirm the required plug before ordering. |
| Balance connector | 7-pin balance port |
| Main wire | 10AWG silicone wire |
What's Included
- HRB 5S 18.5V 4000mAh LiPo battery x 2
Applications
- RC airplane
- RC quadcopter / helicopter
- RC car / truck
- RC boat
For help choosing the correct connector and fitment for the battery compartment, contact [email protected] or visit https://rcdrone.top/.
Details

A matched 5S 18.5V 4000mAh pack rated 100C continuous, with 10AWG silicone leads, EC5 main connector, and a 7‑pin balance port.

Fits common RC car battery compartments when the pack dimensions and connector match your setup.

Built for high-demand RC power systems, with up to 200C max discharge noted for short bursts.

Performance highlights emphasize lower internal resistance and steadier output under load compared with typical packs.

Compatible uses include RC airplanes, quadcopters/helicopters, cars/trucks, and boats—verify voltage, size, and plug type before ordering.
