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.
6.6V 300mAh 2S LiFe Receiver Battery: Universal Receiver is a Spektrum product intended for matching RC power packs to compatible Spektrum Smart-capable models, chargers and field equipment. This page presents the practical buying information a customer needs before ordering: fit, SKU, image, category, specifications and usage advantages.
The content is written for purchasing through RC-MODEL, without supplier prices or links to competing stores.
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 | Spektrum |
| Brand | Spektrum |
| Product Code | SPMB300LFRX |
| Spektrum Category | Radios / Accessories / Batteries |
| Product Family | Spektrum receiver and radio-link range |
| Application | matching RC power packs to compatible Spektrum Smart-capable models, chargers and field equipment |
| Compatibility Focus | Check compatibility with Spektrum Smart equipment and the exact model requirements before ordering. |
| Battery Type | LiFe (3.3V per cell) |
| Battery Voltage | 6.6V |
| Product Height | 0.55 in (14mm) |
| Product Length | 1.97 in (50mm) |
| Product Weight | 0.8 oz (24 g) |
| Product Width | 0.79 in (20mm) |
| Wire Gauge | 20 AWG |
| Battery Balance Connector | JST_XH |
| Maximum Continuous Discharge Rate | 20C |
| Watt Hours | 1.98 Wh |
| Capacity | 300mAh |
| Normal/Standard Charge Current | 60mA |
| Normal/Standard Charge Rate | 1C |
| Maximum Charge Current | 300mA |
| Maximum Continuous Discharge Current | 6A |
| Balance Lead Length | 1.97 in (50mm) |
| Discharge Lead Length | 5.91 in (150mm) |
Tags: Spektrum, SPMB300LFRX, Spektrum receiver and radio-link range, Spektrum Catalog, Spektrum Batteries, RC-MODEL
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