BLACK+DECKER BM3B 6V & 12V Battery Charger & Maintainer

Smart Charging. Continuous Protection. Always Ready Power.

KEEP YOUR BATTERIES READY — ANYTIME, ANY SEASON

Maintain peak battery performance with the BLACK+DECKER BM3B Battery Charger & Maintainer, engineered for long-term reliability, safety, and intelligent charging control.

Designed for both 6V and 12V battery systems, this compact yet powerful unit ensures your batteries stay fully charged, protected, and ready for use — whether in vehicles, equipment, or seasonal storage applications.

From everyday drivers to specialty equipment, the BM3B delivers hands-free battery care with advanced smart charging technology.

SMART AUTOMATIC CHARGING SYSTEM (1.5 AMP)

Built with high-frequency smart charging technology, the BM3B intelligently monitors battery condition and adjusts output for optimal performance.

✔ 1.5 Amp charging output for safe, steady charging
✔ Supports 6V & 12V batteries
✔ Compatible with AGM, GEL, and WET (lead-acid) batteries
✔ Prevents overcharging with automatic regulation

Ensures consistent, safe charging without damaging battery life.

FULLY AUTOMATIC MAINTENANCE MODE

More than just a charger — this is a battery maintainer designed for long-term care.

✔ Automatically switches between charging mode and float mode
✔ Maintains battery at optimal charge level
✔ Prevents battery drain during inactivity
✔ Ideal for stored vehicles and backup equipment

Perfect for:

• Cars & SUVs
• Motorcycles & ATVs
• Boats & marine batteries
• Lawn mowers & garden equipment
• Classic and seasonal vehicles

MULTIPLE CONNECTION OPTIONS (MAXIMUM FLEXIBILITY)

The BM3B is designed for quick, hassle-free connection in any setup.

✔ Battery Clamps – Fast temporary connection
✔ O-Ring Terminals – Permanent installation option
✔ DC Accessory Plug – Convenient plug-in charging

This gives you the flexibility to leave it connected for continuous maintenance or use it on-demand.

ADVANCED SAFETY & CIRCUIT PROTECTION

Engineered with built-in protection systems to ensure safe and worry-free operation.

✔ Reverse polarity protection
✔ Short circuit protection
✔ Overcharge protection
✔ LED indicators for charging status

Protects both your battery and your vehicle’s electrical system at all times.

COMPACT DESIGN WITH BUILT-IN MOUNTING

Designed for convenience and durability:

✔ Compact, space-saving design
✔ Built-in mounting bracket for permanent installation
✔ Lightweight and easy to handle
✔ Rugged BLACK+DECKER construction quality

Ideal for garages, workshops, and long-term installations.

TECHNICAL SPECIFICATIONS

• Brand: BLACK+DECKER
• Model: BM3B
• Voltage Compatibility: 6V & 12V
• Output Voltage: 12V
• Current Output: 1.5 Amps
• Battery Types: AGM, GEL, WET (Lead-Acid)
• Input Voltage: 12V (AC)
• Connector Types: Battery Clamps, O-Ring Terminals, DC Plug
• Dimensions: 127 × 41 × 66 mm
• Weight: 1.2 lbs (approx.)
• Mounting: Built-in bracket

IDEAL FOR

✔ Vehicle owners
✔ Auto garages & workshops
✔ Fleet maintenance
✔ Marine applications
✔ Seasonal equipment users
✔ Backup power systems

WHY CHOOSE THE BM3B?

✔ Extends battery life
✔ Prevents unexpected battery failure
✔ Fully automatic — no manual monitoring required
✔ Safe, reliable, and energy-efficient
✔ Trusted BLACK+DECKER engineering

KEEP YOUR BATTERY HEALTHY. STAY READY TO GO.

With the BLACK+DECKER BM3B, you’re not just charging a battery —
you’re protecting your investment and ensuring reliable performance every time you turn the key.