Official HUINA 3.7V 500mAh Li-ion Battery – Red JST 2-Pin Connector

This is an official HUINA factory-supplied 3.7V Li-ion battery, rated at 500 mAh (3.33 Wh).
 
It uses a red JST 2-pin (RCY) connector, commonly found on smaller HUINA RC construction models that run on single-cell (1S) power systems.
 
As a factory-original battery, it provides the correct voltage, wiring, and connector type required by HUINA electronics — no adapters or modifications needed.
 
Specifications
Brand: HUINA (OEM)
Battery type: Li-ion (18650)
Voltage: 3.7 V (1S)
Capacity: 500 mAh
Energy: 3.33 Wh
Connector: Red JST 2-pin (RCY)
Condition: New, factory original
 
HUINA RC models that use a 3.7V Li-ion battery with a red JST 2-pin connector.
 
Official HUINA factory battery — not an aftermarket or modified pack.