VFC / Maxim Defense PDX-SD/MDX-510 Extended Battery Cap

VFC / Maxim Defense PDX-SD / MDX-510 Extended Battery Cap

More juice. Less hassle.

Give your battery a little extra breathing room. These extended battery caps add battery space to your VFC / Maxim Defense PDX-SD or MDX-510 setup while keeping a clean, streamlined look.

Two Sizes. Your Setup.

• 65mm: Extra battery room in a shorter profile.

• 95mm: More space for setups that need additional battery clearance.

Available individually or in a 2-pack—keep a spare ready or outfit two setups.

Pro Tip: Start the threads gently. Turn the cap backward until the threads seat, then tighten forward by hand to help prevent cross-threading. Never force the cap.

✅ Adds room for your battery and wiring
✅ Available in 65mm and 95mm sizes
✅ Choose a single cap or double pack
✅ Designed for VFC / Maxim Defense PDX-SD / MDX-510 platforms

Check your battery dimensions and available clearance before choosing a size.