• Amass AS150U antispark male and female connector cable assemblies
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Amass AS150U 2-Core Antispark Male to Female Battery Extension - Custom Cable Assembly

  • Dual-end 2-core extension cable built with an Amass AS150U antispark male connector pair (positive and negative) on one end and an AS150U antispark female pair on the other, using the AS150U's pre-charge contact to inrush-limit capacitive ESC and inverter loads before the main contact seats.
  • Available in 8, 10, and 12 AWG with high-strand silicone insulation (−65 °C to +200 °C) or PVC where cost dominates, in stock lengths of 6, 12, 18, 24, 36, and 48 inches, with red/black polarity coding as standard and optional heat-shrink sleeving or braided sheath over the two cores.
  • AS150U connector rated 150 A continuous and up to 300 A peak at up to 500 V DC per Amass AS-series specification, with gold-plated main contacts and a secondary pre-charge contact wired through an internal resistor that closes before the main contact to eliminate arc flash on hot-plug.
  • Used as battery-to-ESC, battery-to-inverter, and pack-extension cabling on large-format LiPo and Li-ion systems — eVTOL and heavy-lift UAV, large-scale RC aircraft, electric karts, e-surf and e-foil boards, solar and off-grid inverters, and BMS-managed packs where sparking on connection damages FET banks and contactors.
  • Custom wire gauge (6–12 AWG), overall length, silicone or PVC insulation, red-to-black or same-color configuration, heat-shrink or expandable-braid sheathing, and single-pole-only (1-core) builds available on request — submit a quote request for non-stock builds.
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Equivalent alternatives for obsolete parts
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What information do you need to provide a quote for a custom wire harness?

To provide an accurate quote and lead time, please provide:

  1. Technical Drawing or Diagram: Showing pinouts, lengths, and tolerances.
  2. Bill of Materials (BOM): Listing specific connectors (MPN) and wire gauges (AWG).
  3. Estimated Annual Usage (EAU): Helping us optimize pricing for your volume. Note: If you do not have a formal drawing, our engineering team can help create one based on your physical sample.
Can you suggest cost-saving alternatives for expensive connectors (e.g., TE, Molex, JST)?

Yes. We offer variety of alternative components.

We have extensive supply chain relationships in Taiwan and can suggest"Functionally Equivalent"alternatives that are fully compatible with major brands like TE, Molex, or JST but at a significantly lower cost. We will provide datasheets and samples of the alternative components for your approval before production.

How do you ensure quality control for custom cable assemblies?

Every single cable assembly undergoes rigorous testing before leaving our Taiwan facility. Our standard QC process includes:

  • 100% Continuity Testing: Ensuring no opens, shorts, or miswires.
  • Pull Force Testing: Verifying crimp strength.
  • Visual Inspection: Checking for cosmetic defects and label accuracy.
  • Hi-Pot Testing: Available upon request for high-voltage applications to ensure insulation integrity.