18V Battery Adapter Converter – BL1830 BL1840 BL1850 Compatible

18V Lithium-Ion Battery Adapter Converter – BL1830 / BL1840 / BL1850 Compatible

Power up your high-performance 18V tools with ease using this compact battery adapter converter. Designed to bridge compatibility between Dayi A3/2106 battery systems and BL1830, BL1840, and BL1850 lithium-ion battery packs, this adapter lets you get the most out of your existing battery inventory without costly upgrades.

Key Features

• Compatible with 18V lithium-ion batteries — works with BL1830, BL1840, and BL1850 battery packs
• Two types available: convert Dayi A3/2106 batteries for use in 18V machines, or convert BL1830/BL1840 packs for use with Dayi A3/2106 tools
• Clear wiring identification: red wire connects to positive terminal, black wire to negative terminal
• Secure locking mechanism for a firm, stable connection during operation
• Ideal for high-power tool applications
• Quick and easy installation — no special tools required
• Compact and lightweight plastic construction

Specifications

• Material: Durable plastic
• Color: Black
• Voltage: 18V
• Dimensions: Approx. 95 × 74 × 33 mm
• Quantity: 1 piece
• Type A: Converts Dayi A3/2106 battery for use with 18V machines
• Type B: Converts BL1830/BL1840 battery for use with Dayi A3/2106 tools

Package Contents

• 1 × Battery Adapter Converter (battery not included)

Important Notes

• Colors may appear slightly different from product images due to monitor brightness and lighting conditions.
• Please allow for minor measurement variations (±1–2 mm).
• Made in China.

For general guidance on safe use of power tool batteries and electrical components, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer safety tips.

Frequently Asked Questions

Q: Which battery packs is this 18V adapter converter compatible with?

A: This adapter converter is compatible with 18V lithium-ion battery packs, specifically the BL1830, BL1840, and BL1850 series, as well as Dayi A3/2106 batteries. Two adapter types are available to cover both conversion directions.

Q: Is the 18V battery adapter easy to install?

A: Yes! The adapter features a secure locking mechanism that clicks firmly into place. The red wire connects to the positive terminal and the black wire to the negative terminal, making installation straightforward even for first-time users.

Q: Does the adapter come with a battery?

A: No, the package includes only the battery adapter converter (1 piece). Batteries such as the BL1830, BL1840, or BL1850 must be purchased separately.

Q: What are the dimensions of this battery adapter?

A: The adapter measures approximately 95 × 74 × 33 mm, making it compact and easy to handle. Please allow for minor measurement deviations of ±1–2 mm.