How to choose a LiPo battery for an RC aircraft
Cell count, capacity, C rating, connectors, battery weight and realistic flight time explained for RC aircraft buyers.
21700 5000mAh Battery for TX16S and TX12 MKII is a RadioMaster product intended for powering compatible RadioMaster transmitters and field equipment. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Cell count, capacity, C rating, connectors, battery weight and realistic flight time explained for RC aircraft buyers.
Charging, storage, discharge, swelling, safe charging bags and the mistakes that should never be made with LiPo packs.
A buying guide that helps customers choose battery cell count, capacity, C rating, connector and charger direction by model type.
Storage habits for expensive RC equipment: aircraft support, humidity, dust, battery storage voltage, connectors and long-term readiness.
A step-by-step safety guide for measuring amps, watts and voltage sag so customers avoid overheating motors, ESCs and LiPo batteries.
| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.BATT-5A2S |
| All Variant SKUs | HP0157.BATT-5A2S |
| Product Type | Battery |
| RadioMaster Collections | Accessories, Battery |
| Product Family | TX16S transmitter platform |
| Application | powering compatible RadioMaster transmitters and field equipment |
| Item | 21700 5000mAh Battery |
| Weight | 155g |
| Dimensions | 71.5 x 43.5 x 23.5 mm |
| Compatibility | Compatible with RadioMaster TX16S platform where applicable |
| Voltage | 7.4V |
| Capacity | 5000mAh |
| Watt Hours | 37wh |
| Cells | 2 x 21700 Li-ion 3.7V 18.5Wh |
| Connector | JST-XH and XT30 |
| Charge current | Max 2A |
Tags: RadioMaster, HP0157.BATT-5A2S, RadioMaster Accessories, Radio Batteries, RC radio
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