Dual 18V Battery Adapter for Compatible Makita 36V Tools
DETAILS
Run compatible 36V tools using two 18V battery packs from your existing battery platform. This dual-battery adapter accepts two compatible Makita 18V Li-ion batteries and combines them into a single 36V tool-side connection, giving users already invested in compatible 18V packs another way to power selected higher-voltage equipment.
- 2 × 18V to 36V Setup: Two compatible 18V battery packs work together through the adapter to provide power for compatible 36V tools and equipment.
- Use Your Existing Battery Platform: Designed for compatible Makita 18V Li-ion batteries, helping extend the usefulness of batteries already in your cordless-tool kit.
- Dual-Battery Mounting: Two battery receptacles securely hold both packs in one compact tool-mounted configuration.
- Direct Tool Connection: The slide-on interface mounts directly to compatible 36V cordless tools for a self-contained setup without a separate battery cable.
- BL1830 Compatible: Supports compatible Makita BL1830 18V battery packs for users already working within the matching battery system.
Specifications:
- Battery Input: 2 × 18V Li-ion battery packs
- Combined System Voltage: 36V
- Battery Platform: Compatible Makita 18V Li-ion
- Compatible Battery: BL1830
- Battery Positions: 2
- Mounting Type: Slide-on tool interface
- Batteries Included: No
- Tool Included: No
Good For: Construction workers, carpenters and plumbing & HVAC technicians using compatible Makita 18V batteries with selected 36V cordless tools and equipment.
SIZE GUIDE
Use these size guides as a reference. Fit can vary by brand and product type, so always check the product page notes when available.
Apparel Size Guide (CM)
Measure your body in cm and compare with the charts below. If you’re between sizes, choose the larger size for a more relaxed fit.
Tip: Keep the tape snug, not tight. Measure over light clothing.
How to Measure (Body)
- Chest: Measure around the fullest part of your chest.
- Waist: Measure around the narrowest point of your waist.
- Hips: Measure around the fullest part of your hips.
- Inseam: Measure from the crotch to the ankle (for pants/tights).
Men’s Apparel (CM)
| Size | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
| S | 86–94 | 74–82 | 86–94 |
| M | 94–102 | 82–90 | 94–102 |
| L | 102–110 | 90–98 | 102–110 |
| XL | 110–118 | 98–106 | 110–118 |
| XXL | 118–126 | 106–114 | 118–126 |
Women’s Apparel (CM)
| Size | Bust (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
| S | 80–88 | 62–70 | 86–94 |
| M | 88–96 | 70–78 | 94–102 |
| L | 96–104 | 78–86 | 102–110 |
| XL | 104–112 | 86–94 | 110–118 |
| XXL | 112–120 | 94–102 | 118–126 |
Note: Apparel sizing can vary by brand and fit (compression vs relaxed). If a product page lists measurements, follow those first.
Footwear Size Guide
For the best fit, measure your foot length (cm) and use the chart below. If you're between sizes, we recommend sizing up.
How to Measure Your Foot
- Use a sheet of paper: Place it against a wall on a hard floor.
- Stand and mark: Heel lightly against the wall, mark your longest toe.
- Measure heel to toe: Measure the distance in cm.
- Measure both feet: Use the longer measurement.
- Wear your usual socks: If you’ll wear sports socks, measure with them on.
Footwear Conversion Chart (CM → EU / UK / US)
This chart is a general guide. If a product page includes a specific brand chart, follow that first.
| Foot length (cm) | EU | AU/UK (Men) | US (Men) | US (Women) |
|---|---|---|---|---|
| 22.0 | 36 | 3.5 | 4 | 5 |
| 22.5 | 36.5 | 4 | 4.5 | 5.5 |
| 23.0 | 37 | 4.5 | 5 | 6 |
| 23.5 | 37.5 | 5 | 5.5 | 6.5 |
| 24.0 | 38 | 5.5 | 6 | 7 |
| 24.5 | 38.5 | 6 | 6.5 | 7.5 |
| 25.0 | 39 | 6.5 | 7 | 8 |
| 25.5 | 39.5 | 7 | 7.5 | 8.5 |
| 26.0 | 40 | 7.5 | 8 | 9 |
| 26.5 | 40.5 | 8 | 8.5 | 9.5 |
| 27.0 | 41 | 8.5 | 9 | 10 |
| 27.5 | 41.5 | 9 | 9.5 | 10.5 |
| 28.0 | 42 | 9.5 | 10 | 11 |
| 28.5 | 42.5 | 10 | 10.5 | 11.5 |
| 29.0 | 43 | 10.5 | 11 | 12 |
Tip: If you wear thicker socks or prefer extra room, size up. For sandals, keep heel and toes within the sole (no overhang).
Need Help?
If you'd like help choosing a size, email us at support@twinathletic.com.
SHIPPING & RETURNS
We ship to the United States with an estimated delivery time of 3–7 business days, handled through FedEx ICP for secure and reliable service. Orders are processed Monday to Friday, and you’ll receive a tracking link via email once your order is on the way.
Free shipping is available on all orders. For full details, visit our Shipping & Delivery page.
If your order isn’t the perfect fit, we offer 30-day returns. Items must be unworn, unwashed, and in original condition to qualify. For full details, visit our Return Policy.
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Questions? Our team is available Monday to Friday, 9 am to 5 pm.
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HASSLE-FREE RETURNS
Not completely satisfied? Return your order within 30 days for a full refund.