
300mAh 3S 11.1V 30C LiPo Battery, JST & Balance, Spektrum
Spektrum - SPMX3003SJ30 Spektrum 300mAh 3S 11.1v 30C LiPo Battery with JST connector and balance lead. Ideal for all of the new gen 2S - 3S capable UMX models but essential for the UMX P-51D Voodoo and new UMX Conscendo due to the specific size of the battery compartment in those 2 models. Product Specific...
Spektrum - SPMX3003SJ30
Spektrum 300mAh 3S 11.1v 30C LiPo Battery with JST connector and balance lead.
Ideal for all of the new gen 2S - 3S capable UMX models but essential for the UMX P-51D Voodoo and new UMX Conscendo due to the specific size of the battery compartment in those 2 models.
Product Specifications
| Battery Type | LiPo (3.7V per cell) |
| Capacity | 300mAh |
| Number of Cells | 3 |
| Application | UMX 3S airplanes |
| Product Weight | 24.5g |
| Battery Voltage | 11.1V |
| Connector Type | JST-RCY |
| Discharge Lead Length | 2" (51 mm) |
| Maximum Charge Rate | 0.9 Amps (3C) |
| Product Length | 1.65" (42 mm) |
| Maximum Burst Discharge Rate | 30C |
| Maximum Continuous Discharge Rate | 30C |
| Product Height | 0.7" (18 mm) |
| Maximum Continuous Discharge Current | 9 Amps |
| Product Width | 0.74" (19 mm) |
- ·See product description for included items.
Assembly notes coming soon — ask Shane if you need a hand before your first flight.
Dispatch — Orders dispatch within 1–2 working days. Tracked courier NZ-wide; delivery typically 1–3 working days depending on location. Rural delivery adds a day.
Cost — Shipping is calculated at checkout based on your address. Oversized airframes may carry a freight surcharge — also shown at checkout.
Click & collect — Free pickup from 75 Bassett Street, Burwood, Christchurch. After-hours by appointment — text ahead.
Returns — 30-day returns on unflown, as-new items. Crash damage isn't covered, but Shane stocks the spares to put it right.
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Questions before you buy? Shane's happy to talk motor choice, CG, or whether this model suits your flying site — no sales script, just straight answers from someone who fixes the real thing for a living.
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