Choosing the right 2405 rechargeable battery for your RC car is crucial for unlocking the full performance of your UdiRC UCX2405 or UCX2405PRO rock crawler. Many enthusiasts search for a “2405 rechargeable battery replacement” only to find generic options that may not fit or could even damage their vehicle. This guide will clarify your crawler’s exact needs and analyze two top-tier battery candidates to ensure you get the perfect, high-performing match.
UCX2405PRO RC Rock Crawler Specs & Battery Demands
The UdiRC UCX2405PRO is a capable 1/24 scale rock crawler packed with features for tackling tough terrain. To power its integrated brushless motor and 4WD system, it requires a very specific battery. Using a battery that doesn’t match these core specs will prevent it from working.
Vehicle Overview & Key Specifications:
- Model: UdiRC UCX2405PRO
- Scale: 1/24
- Drive System: 4WD
- Radio System: 2.4GHz with multi-channel control
- Motor: Integrated high-torque brushed or brushless motor (varies by version)
- Features: Often includes working headlights, proportional steering, and a multi-speed transmission.
The UdiRC UCX2405PRO Battery Requirements:
Requirement Specification
- Battery Type Rechargeable Lithium Polymer (LiPo) or Lithium-Ion (Li-ion)
- Voltage & Configuration 7.4V (2S)
- Connector Type XH-3P Plug (JST-XH 3-pin balance connector)
- Size Consideration The battery compartment is compact. The exact max dimensions are not always published, so measuring your original battery or compartment is the safest method.
Top 2405 Rechargeable Battery Replacements for Your RC Car
Based on the requirements above, we’ve analyzed two popular and correctly-voltaged replacement options. However, a critical compatibility check is needed.
The following batteries are marketed for small RC vehicles like the UCX2405 series. While their voltage is correct, their connector type requires your attention.
URGENEX Lipo 2S 30C 450mAh Battery for RC UCX2405
This battery is advertised as a direct upgrade for various micro RC models, including the UCX2405.
Key Parameters:
- Voltage & Configuration: 7.4V (2S1P)
- Capacity: 450mAh
- Discharge Rate: 30C Constant
- Connector: Typically uses a JST-PH 2.0 3-pin connector (common for micro aircraft and some cars).
- Dimensions (Approx.): Varies, but similar to stock, often around 45mm x 20mm x 11mm. Always verify before purchase.
Elxjar 7.4V 350mAh Battery Replacement for UCX2405PRO
This battery is specifically branded as a replacement for the UCX2405PRO.
Key Parameters:
- Voltage & Configuration: 7.4V (2S)
- Capacity: 350mAh
- Connector: Often comes with an XH-3P/JST-XH connector.
- Dimensions (Approx.): Designed to be a direct fit for the UCX2405PRO battery compartment.
For most UCX2405PRO owners seeking a simple and reliable 2405 rechargeable battery replacement, the Elxjar 350mAh battery is the safer and more straightforward choice. It is specifically engineered to match the voltage, connector, and physical dimensions of your rock crawler.
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