Best Power Tool Battery Converters in 2026

✅Compatible with Milwaukee M18 battery 18v series 48-11-1815 / 48-11-1820 / 48-11-1828 / 48-11-1840 / 48-11-1850 / 48-11-1860 and more. Our battery adapter connector is well-made, snug fit your battery, can install and lock battery easily. Made of durable ABS plastic, heat resistant and not easy to corrode, perfect for indoor and outdoor use.

✅Better security, our product upgrade has some security design. Equipped with 30Amp fuse protects the battery equipment from being damaged by excessive power. Waterproof fuse holder rubber cap fits on tightly to protect blade fuse inside. High quality silicone copper wire improves the conductivity and safety, heat-resistance 12 AWG wire is suitable for high-power applications.

✅Easy to use, only need to move the power adapter into the groove, then push converter and make sure it has locked the battery. If you want to remove the adaptor from the battery, please press down the buckle of the battery, then remove it. There are 3 fixing screw holes on the adapter, can be well fixed to the walls, machines or DIY product.

👍Works with Ryobi 18V Li-ion Battery. Compatible with Ryobi Lithium-Ion 18V Battery: ONE+ P189，P190，P191，P192，PBP002，PBP003，PBP004，PBP005，PBP006，P193，P194，P195，P197，P102，P103，P104，P105，P107，P108，P109，RB18L50, BPL1820, BPL-1820G,BPL-1815, BPL-18152

👍With 212 push-type quick terminal blocks, just lift up the lever, insert the stripped wire, and press the lever closed while holding the lever tight to make a solid connection. These are a great purchase for anyone that is doing electrical projects or work that requires you connect lots of wires. When you need to jump something or run tests on a circuit, they will not mess up the wires and will organize your electrical box, so you do not have to twist a fistful of copper wire together.

👍They are also easy to install and will lock onto your battery very well. The adapter has 12 gauge wire installed; Maximum permissible current 55.6A. Function as for the battery shelf slot holder, the hole for this can be found by the lighting check.

Control the charge on your phone, tablet, batteries, and more. The V20 USB power source Features a single USB port for charging compatible devices with a rapid charge Rate of 2.1A output. The compact design allows for ease portability and added convenience.

Charge up your devices: single USB port for charging compatible devices like phones, tablets and more

Rapid charge Rate: 2.1A output current for Rapid charging rate

Better security: The adapter(1pcs included) is equipped with a fuse and high-quality silicone copper wire to prevent excessive transient current from damaging the battery and equipment. You can use it safely

Perfectly compatible : work with for Ryobi 18V P108 P107 P102 P100 Li-ion & Ni-Cd Battery . Easy to install ,locks on you battery very well.

Easy to DIY operate:The adapter is equipped with wiring terminals, which is convenient for you to connect the power cord of the device with the power cord of the adapter faster and better.

High Quality: EBL C size gaskets are made of high quality and durable plastic ABS, which provides long life of AA batteries

Economic Case - Save on C battery costs, this small adapter allows you to use AA batteries in any device that requires a regular C-type battery

Easy to Use: Simply and easily provide a "C size body" for AA batteries, Put the battery in it to be used with any C size battery

✔【Function 1 - Easily convert DEVVOLT 18V 20V XR Battery or FLEX VOLT 20V/60V 18V/54V Battery to DEVVOLT 18V XRP Battery】 Replace DeVVolt DCA1820 Battery Adapter,Allows for use of 20V MAX XR Lithium batteries in any for DEVVOLT 18V tools, 20V Devvolt lithium battery can be converted to run older Devvolt 18V NiCad & NiMh battery tools and replace old Devvolt 18V Ni-Cad batteries DC9096 DC9098 DE9039 DE9095 DE9096 DE9098 DW9095 DW9096 DW9098.

✔【Function 2 - USB Port】Featuring one USB port for charging mobile devices(such as phone,pad,camera,lamp...) and providing 5v 2.1a quick and easy charging.

✔【Widely Compatible】Compatible with all DEVVOLT 18V 20V XR Battery or FLEX VOLT 20V/60V 18V/54V Battery.(Such as DCB200 DCB204 CB206 DCB606 DCB609...) | Compatible with all Devvolt 18V XR Tools (Such as DC020 DC212 DC212B DC212KA DC212KB DC212KZ...)

Condition: Mould ABS Plastic

Suitable For DeWalt 20v MAX XR DCB203 DCB205 Lithium Batteries Pack (Not Compatible with DeWalt 18v Ni-CD Battery).

Fits For RIDGID 18v Cordless Tools (WARNING: Not Compatible with RIDGID 18v Advanced Tools).

Materials and Processes: EBL D size washers are made of high quality non-toxic ABS plastic, and durable materials extend battery life

Safe and Reliable: The gasket protects the battery from smooth edges and does not scratch the battery surface. Precise design also ensures that the battery does not appear outside the gasket

Economical environmental protection: save hundreds of D-type batteries in landfills, saving you money and time while protecting the environment

Brand new 20V battery adapter with 5V USB Port, Replacement for 18v to 20v Adapter DCA1820, Compatible with most 18V tools and allows for use of 20V MAX XR batteries

Allows for use of 20V MAX XR Li-ion batteries in 18V tools, Compatible with 20V battery DCB200 DCB201 DCB203 DCB203BT DCB204 DCB205 DCB206 batteries.

This DCA1820 adapter can not work with 12V and 20V/60V batteries.

Ensure safety: There are 30A fuses on the positive and negative electrodes of the adapter to prevent excessive current from damaging the battery and power equipment.

Widely compatible: suitable for Ryobi P100 P102 P103 P104 P105 P107 P108 P109 Li-ion & Ni-CD Battery. Easy to install and can lock the battery well.

Convenient wiring: the product contains wiring terminals, which is convenient for connecting the positive and negative wires of the device to one end of the terminal, and then connect the positive and negative wires of the adapter to the other end. Make sure that the positive and negative electrodes are in correct contact.

Suitable for Craftsman 19.2V Platform Cordless Tools, Work on DeWalt 20V MAX XR DCB203 DCB205 Slider Lithium Battery

Built-in 5V 2.1A MAX Mobile USB Portable Charging System

Easily extend the working hours of Craftsman 19.2V Series Cordless Tools

Perfectly compatible : work with for Ridgid AEG 18V Li-Ion battery (for L1815R B1820R L1830R B1830R B1820 R840084 AC840084 AC840083 130383025 130383001 R840083 R840085 R840086 R840087 AC840085)

Safe Design: The product is update two designs. Fuses and Switches. The switch ensures that you can switch the battery on and off at any time without having to unplug the adapter. Fuse power over protection. Copper contacts improve conductivity and safety. Heat resistant 12 AWG wire for high power batteries.

HIGH QUALITY: The adapter is equipped with a fuse and high-quality silicone copper wire to prevent excessive transient current from damaging the battery and equipment. excellent scratch and impact resistance and chemical resistance, and impermeable to heat, moisture and corrosionThe battery adapter is equipped with screw holes for easy screwing, Securely installed

➤【Worldwide Voltage Converter】 Our power converter aims at stepping down 220/240V to 110/120V, with 1 EU plug cable and 7 UK/AU/US/IT/India/South Africa plug adapters which covers 200+ countries, you're free to use or charge your non-dual electronics for overseas travel all over the world, no worries about the devices voltage and charging issues anymore while you're outside US and travel on any countries that rated at 220V (For both 50/60Hz)

➤【Portable All-in-one Voltage Transformer】 Travel size won't compromise the efficacy of this converter at all due to our all-in one design, you will get a power converter w/ 3 AC outlets+2 USB ports+1 QC 3.0 port+1 Type-C port, these will satisfy all your simultaneously up to 7 devices charging needs, unlike traditional converters which tend to be large & heavy, our special design converter is definitely practical for traveling

➤【Compatible with Various Appliances】 Not only support using & charging needs like phone, laptop, tablet, hair drye (needs to be mechanical controlled one that has push side to side on/off button, not for dyson dryer type), blue-tooth speaker, electric shaver, even for cooking machine, air purifier, rice cooker, electric kettle, vacuum cleaner, hi-fi active speaker, it will work well as long as your device is NOT electronic controlled auto/touch on/off button and under 2300W volts (26-2300W)

INTERNATIONAL PLUG ADAPTER, 220V TO 110V CONVERTER: Compact travel size (2.8”x2.5”x2.3”). Universal Travel Adapter fits electrical outlets in over 150 most commonly visited countries and regions, such as European, UK, Israel, Italy, Ireland, Germany, China, Korea, India, Brazil, Europe, Asia, Africa, Etc.

ADAPTER MODE: for any mobile device such as iPhone charger, iPad charger, phone charger, cameras charger, laptops charger, MacBook charger, watches charger and so on. All USB and dual voltage devices must use adapter mode, is listed as a range of numbers, like 110–220V or 100-240V.

CONVERTER MODE: Voltage Converter step down the voltage from 220v to 110v to use with Electric Products. Electric Products are simple heating devices or have mechanical motors. Examples are hair dryers, steam irons, electric kettles, waffle makers, one step volumizer hair dryer brush, curling iron, etc

【Purchase NOTE】: 1. The top of this adapter is NOT suitable for use with Milwaukee old V18 tools or NiCD/NIMH battery tools; 2. It does NOT support charging Makita batteries with Milwaukee chargers (please use original charger); 3. The adapter top is compatible with most M18 tools, but it is NOT a panacea. IF the adapter NOT clip into place and wouldn't power up the equipment.It is necessary to trim the protrusion on the end of the adapter to be compatible.

【Converter Function】: This MT20ML-adapter only can compatible with Makita 18V lithium slide battery to make them work on Milwaukee M18 18V Lithium-Ion cordless tools. Let you enjoy the benefits of extended lithium ion battery operation time on existing 18V tools instruments.

【Applicable Battery Models】: The bottom of this adapter is only compatible with Makita 18V lithium li-ion batteries: BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, BL1815, etc.【NOTE】: Can not be used for power tool battery charging, this adapter will not fit into any chargers.

Made of high-quality ABS Plastic,Compatible with Dewalt 12V series

Battery not included, Color Random（black or yellow）

This product is not a charger, it only outputs battery voltage and power directly from your battery.

【Compatible with】Compatible with all Makita 14.4V ~ 18V LXT BatteriesBL1415, BL1430, BL1445, BL1815, BL1830, BL1845

【Dual USBCharging Port】Featuring two USB ports for charging 2mobile devices at once and providing 5v 2.1a quick and easy charging. Alsocomes one 12V 2A DC output

【Super Bright LEDWork Light】140lm LED Work Light, Steady and FlashModes, Two brightness, High brightness LED light can last more than 25 hours.Suitable for camping, working in darkness and emergency occasions

Perfectly Compatible: Compatible with Milwaukee M18 18-volt lithium-ion battery 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 and more. 12 AWG is suitable for high power applications and provides enough power to upgrade your power wheel, toy or robotic DIY.

Safe and Durable: The adapter is made of durable ABS plastic, which is heat resistant and not easy to corrode. Equipped with a UL listed switch, ensuring you can easily turn the battery on and off for safety. High quality soft silicone copper wire is durable, copper contacts improve conductivity and safety.

Easy to Install: Simply slide in the battery to lock, and the adapter has 2 fixing screw holes for easy screwing. 30Amp fuse is easy to insert into a waterproof fuse holder with a rubber cover, protecting battery devices from overpower damage. The lead extension allows you to connect the device power cord to the adapter power cord.

Compatibility:perfectly compatible with Makit_a 18V lithium-ion batteries BL1860 BL1850 BL1840 BL1830 BL1860B BL1850B ,etc.The power wheel adapter can be installed easily and locks your battery nicely.

Safety Design:The adapter is equipped with a switch to control the battery current on or off.The fuse supply overpowers protection. Waterproof fuse holder rubber cap fits on tightly to protect blade fuse inside.Heat-resistance 14 AWG wire is suitable for high-power batteries.The copper contact improves the conductivity and safety.

Easy to install and remove：Just move the power adapter to the inside of the groove and push the converter to lock the battery.To remove the power adapter, please press the battery button first, then push it back to remove. There are three fixing holes on the back of the battery adapter, you can fix it in any position of the DIY product.

Our battery adapter can install and lock your battery easily. Fit for Ryobi 18V ONE+ Battery: P102, P103, P104, P105, P107, P108, P109, P189, P190, P191, P192, P193, P194, P195, P197, PBP002, PBP003, PBP004, PBP005, PBP006, RB18L50, BPL1820, BPL-1820G, BPL-1815, BPL-18152.

All-in-one switch fuse device. The switch ensures you can turn on&off the battery easily. After the switch is turned off, the risk of a short circuit caused by a wrong connection can be avoided. Added 30Amp fuse voltage overcurrent protection.

Heat-resistant 14AWG wire-matched quick-connect terminals are ideal for high-power hardware use. Only need to move the battery into the groove of the adapter to fix the battery without falling off. If you want to remove the adaptor from the battery, Please press down the buckle of the battery, then remove it.

Our battery adapter can install and lock your battery easily. Compatible with Milwaukee M12 Lithium-Ion battery, work with for Milwaukee M12 48-11-2420 48-11-2411 48-11-2401 48-11-2402 48-11-2460 etc.

All-in-one switch fuse device. The switch ensures you can turn on&off the battery easily. After the switch is turned off, the risk of a short circuit caused by a wrong connection can be avoided. Added 30Amp fuse voltage overcurrent protection.

Heat-resistant 14AWG wire-matched quick-connect terminals are ideal for high-power hardware use. Only need to move the battery into the groove of the adapter to fix the battery without falling off. If you want to remove the adaptor from the battery, Please press down the buckle of the battery, then remove it.

Our battery adapter can install and lock your battery easily. Compatible with Dewalt 20V /18V DCB series battery, work with for DCB205 DCB206 DCB204 DCB203 DCB200 DCB201 etc.

All-in-one switch fuse device. The switch ensures you can turn on&off the battery easily. After the switch is turned off, the risk of a short circuit caused by a wrong connection can be avoided. Added 30Amp fuse voltage overcurrent protection.

Heat-resistant 14AWG wire-matched quick-connect terminals are ideal for high-power hardware use. Only need to move the battery into the groove of the adapter to fix the battery without falling off. If you want to remove the adaptor from the battery, Please press down the buckle of the battery, then remove it.

COMPATIBLE WITH RYOBI 18V LIN-ION BATTERY - Suitable for ONE+ P189，P190，P191，P192，PBP002，PBP003，PBP004，PBP005，PBP006，P193，P194，P195，P197，P102，P103，P104，P105，P107，P108，P109，RB18L50, BPL1820, BPL-1820G,BPL-1815, BPL-18152.

SAFETY DESIGN AND EASY TO INSTALL - The Maximum Current Allowed by the 12AWG Wire is 20 Amperes, Compatible with Most Ryobi Series Batteries 18V. The Main Part of the Converter is ABS Material with Good Insulation. And the Copper Sheets are Highly Conductive. It Also Comes with a Terminal Blocks for Quick Installation and Wiring.

WIDE RANGE OF APPLICATIONS - You Can Use it to Compatible with Ryobi Series Batteries, then Upgrade Your Child's Power Wheels, RC Cars, Robots and so on. You Can Also Use It to Link Your Cordless Tool and Even Solder a Voltage Regulator to It.

Compatible battery model: Compatible with Milwaukee M18 battery 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 etc.

Input Voltage: DC 18V ;Output Voltage: DC 12V;Output current: 15A;Output Power:180W

Wide range of applications: Get the most out of your idle battery. Power inverter suits for a variety of 12v devices,such as fans,light,radio,LED strip lights,monitoring system,motor etc

【Compatibility】Perfectly compatible for Dewalt 18V/20V /60V Lithium-Ion battery, Made of durable ABS plastic, heat resistant and not easy to corrode.

【Security&Upgrade】We upgrade the line protection device of the battery adapter, The wire is 12 gauge, Added switch ensures you can turn on & off the battery easily, Security Better.

【Easy to use】install and lock in battery easily. Move the adapter into the groove, then push the converter and make sure it has locked the battery. if your need remove it,press down the buckle of the battery then remove it.

Waterproof IP68 Voltage Converter Regulator DC 10V-32V 24V to DC 13.8V 5A 69W.

Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage.

Auto-recovery when device is back to normal operating; high transfer efficiency of 90% max..

Battery Type: 4 x 3.7V 18650 battery；Cable Length: 26cm

Material: Durable plastic and metal

High quality battery holder case with DC plug wire leads for easy connecting

【Replace car power inverter】Suitable for Makita 18V Lithium Batteries, Work for MAKITA 18V Lithium ion Battery : BL1860B/BL1860/BL1850B/BL1850/BL1840/BL1830B/BL1830/BL1820/BL1815 etc.turns for Makita batteries into small generators.

【DC to AC converter】The output voltage of this small generator adapter is 110V (120V), 150W, inverter charger， DC to AC charger.Replace car power inverter. compatible withsmallelectronics, such as cell phones, : tablets, laptops,' radios, small fans and led lights etc.

【LED Lights&USB charge】This inverter comes with 2* 5V USB ports and a 200 lumens LED light, you can charge your mobile phone in emergency, as well as emergency lighting for power failure, or outdoor camping lighting, etc.

USB Power Source Addon for DeWALT DCL060 Battery

Battery NOT Included. This is only for the USB Power Source.

The USB Power source attaches to your lithium-ion battery and will enable you to charge your phone and other USB devices.