Best 4 V Batteries in 2026

Real capacity is 500mAh-600mAh, 3.7 volt lithium battery connector plug: SM-2P black 2 pin, plug cross-sectioni size:5.5*5.2mm/ 0.22*0.195inch, Battery fit for Minsk Stunt RC Car and TREYWELL 1/18 scale RC Cars. 3.7V 500mah lithium battery fit for <br> 3.7V 500mAh li-ion battery fit for Blexy 1/18 scale Water-Resistant High Speed Remote Control Car,.

3.7v rechargeable battery voltage: 3.7V , capacity:500mAh , Material: Li-ion.Battery dimensions: L51*18*14mm /2.0*0.72*0.56inch, batery weight:19g/0.66oz. 3.7V 500mAh Li-ion rechargeable battery replacement for Tecnock Uniway Double sided Flip RC Stunt Car,Color maybe orange, green,red.

3.7V 500mAh Li-ion battery replacment for Small Size RC Cars RC Boat RC Trucks , battery replacement for AUSUT Free to fly Landtaix Seckton Small Amphibious RC Stunt car.<br>3.7V 500mAh battery fit for NQD SPESXFUN 1/16 RC Vehicle .<br>Battery replacment for Sharkool 4WD Stunt RC Car Cars. battery replacement for Cradream 4WD Stunt RC Car. Battery replacement for MissCat

Quickly Charge：Up to 3 days of battery life! Can be combined with USB charger cable to charge! Charge Full Anytime, Anywhere!

Multifunctional Use: Compatible with Baofeng UV-5R BF-8HP UV-5RX3 RD-5R UV-5RTP UV-5R MK2 MK3X MK5 PLUS Series Radios

Double Preparation To Escort You：This Baofeng external battery can work with original Baofeng Li-ion charger together，Ensuring You Are Always Online

For sale is 19 in 1 rc multifunction balance charging cable,perfect fit for RC Lipo Charging.Suitable for RC airplane, rc quadcopter and rc car/Truck or RC boat battery charging and methanol engine ignition rods charging.

Output Plug: Tamiya-Plug, Mini Tamiya-Plug, Glow Ignitor, EC3, EC5, XT60,JR TX, JST,Deans Ultra-type, Mini Deans Ultra-type, mCPX, mCX, Spektrum TX,Futaba TX, Anderson Power Poles, Futaba JR servo Plug, HXT 4mm and DIY Bare Wire（Check the picture#2 for details）

Input Plug:4mm gold plate plug

★ Package include:4 x batteries,1 x USB Charger

★ Size:L18*W14*H7mm;Weight:2.8 gram;Volt: 3.7V;Capicaty :100Mah;Discharger Plug:1.25-2P Plug;Discharge Rate: 20C

★ Fit for Estes Proto X, Estes Syncro X ,Hubsan Q4 Nano Quadcopter,Cheerson CX-10 Mini Quadcopter,WLtoys V272 RC Drone

SM-2P black 2 pin connector plug,plug end cross-section size:5.6*4.9mm/0.22*0.19in . Real Capacity is more 20%-30% than normal.Waring:This is SM-2P black 2 pin connector plug,red cable is positive,black cable is negative.make sure your device battery is same.6V Nicd or NiMH AA Rechargeable Battery Pack fit for high Speed RC Truck

5-Cell 5S AA 6.0V Battery Pack. Battery size 2.8*1.96*0.56 Inch(L W H). Make sure your battery is same connector and battery voltage as your toy vehicle battery before you buy. Real capacity about 1500-2000mAh.3 times than 6V NiCd AA Battery. Battery fit for BEZGAR 17 Toy Grade 1:14 Scale Remote Control Car and 8817E and 8818E RC Truck

6V 2200mAh NiMH Rechageable SM-2P Battery fit for SZJJX SPESXFUN BEZGAR 17 18 Cyan Cradream Clesea 1:14 Scale RC Crawler Remote Control Cars .Color maybe blue,red,green or other.

★ 【Product Compatible】:Specially Made for Xbox 360. Ideal quality replacement or backup Battery for your Xbox 360.

★ 【Smart Charging】:Intelligent IC chip inside recognizes a fully charged battery and automatically switches to a saver. against Over-Heated/Over-Current/Over-Voltage/Short-Circuit

★【LED Indicator】: Simply plug and play, no additional setup required. The Charger is with LED light indicator. Let you know the batteries charging status at any time.Green (fully charged), red (charging)

★ Package include:2 x eachine e58 batteries,1 x USB Charge cable(drone not include)

★ Flying Time: Approx. 11 to 12 minutes.Voltage: 3.7V;Capacity: 850mAh;Weight:19.6g;Size:67.89*25.7*12.2mm

★ E58 Battery Spare Parts,JY019 Drone battery;850mAh 3.7V High Capacity LiPo Battery suit for E58 M68 S168 JY019 folding quadcopter,Eachine E58 Drone Battery Replacement batteries

Waring:This is SM-2P black 2 pin connector plug,red cable is positive,black cable is negative.make sure your device battery is same.6V Nicd or NiMH AA Rechargeable Battery Pack 2 Pack fit for high Speed RC Truck.. Related charger ASIN: B071D5F962 and B0711YXQ85.

Battery size 2.8*1.96*0.56 Inch(L W H). Make sure your battery is same connector and battery voltage as your toy vehicle battery before you buy. Battery fit for BEZGAR RC Car 1:14 Aluminium Alloy Large Size and 8817E and 8818E RC Truck

6V 700mAH Battery fit for Seckton AmphibIous RC Car and SPESXFUN SL-155,DEERC DE36W DE37 Free to fly 1/16,Vatos Aokesi 1/12 Ansee RC Cars trucks and Remoking Military truck with wifi camera .and fit for NQD 1:12 Scale RC Car and Fisca Top-race Huina 11 Channel 1510 510 previous version RC Excavator and Battery fit for SZJJX Blexy 1:14 Scale RC car rock crawler truck.

Important Notice: There are 2 kind connector plug battery replacment for Water foam Blaster toys, This is SM-2P black 2 pin plug, if you need another kind plug battery,please choose another battery ASIN: B09Q3CCBFY instead. this battery real capacity about 600mAh.SM-2P black 2 pin connector plug,plug end cross-section size:5.6*4.9mm/0.22*0.19in . Red cable is positive, black cable is negative, please make sure your device plug positive polar in same line. or else will cause short circuit.

Discharge plug SM-2P black 2 pin connector, Battery weight 37grams/1.31oz, Lithium battery capacity 600mAh , Voltage:7.4V 2S, Discharge rate: 15C. 2S 600mAh Li-ion rechargeable battery fit.

7.4V 2S Lithium battery dimensions:L54*W28.4*H14.5mm/2.12*1.12*0.58inch. Make sure your battery room and connector fit. 7.4V 600mAh Lihium batter replacment for CAISSA Electric Gel Water Ball Blaster Splatter,.

-【Good Materials】: XT90 connectors use high temperature nylon material, Xt 90 connector Male Female plug replace USB connectors and Deans Connectors, tight connection, easy to connect and disconnect. Not easy to generate heat and have long performance life.

-【5 Pairs Durable Male and Female XT90 Connectors】: 5 Pairs XT90 connectors thickened dependable female side terminals with the strength needed,very easy to solder, Pos/neg is clearly labeled.

-【5mm Heat Shrink Red and Black Included】: Xt90 connectors come with individual heat shrink Tubes in package.

Multi-Function Cooling Base: This vertical stand can cool and store your Xbox Series X console, with dual controller charging port, 2 USB output ports, 1 Type-C output port and headphone stand. Also, includes 2pcs 1400mAh rechargeable batteries.

4 Fan Cooling: 4 Pcs fan cooling design, with a switch button, different from the previous dual fans, it has a stronger heat dissipation effect, quickly cooling down your Xbox console, let you keep the console cool while playing games, low noise, effectively improve the gaming experience and improve the service life of your console.

High-Speed Charging: Can fully charge 2 controllers at the same time within 4 hours. It is suitable for Xbox X controllers. with LED Indicator, the indicator light change to red when your controller is charging and change to green when your controller is fully charged, know your controller charging status at ease.

Used For:Convert battery with HXT 4MM bullet to XT60 on ESC / charge

Wire Gauge:14awg; Female Connector: XT60

Connector: HXT 4MM Bullet with Red Plastic Shroud

1 Pack 6.0V 600mAH Ni-Mh battery pack and USB Charger cable. Charge fully need 2 hours .

Battery Size: 50*43*10 MM/ 1.96*1.69*0.39 Inch (L W H)

Battery fit for Powerextra Rc Stunt Car, Color: Blue (B083QGM5CS) Red (B088PG5MNT) Green (B088PDBCML).

★ 7.4V 2500mAh Lipo Battery Banana Connecdtor Fit for Promark P70 RC Quadcopter Drone,fit for Syma X8HC X8HW X8HG X8C X8W X8G HQ899 RC Drone Quadcopter,Fit for Vivitar Aero View DRC446 drone DRC-446 and Holy HS400 HS300 Promark P70 VR and Warrior Drone Quadcopter

★ Battery Volts:7.4V;Capacity: 2500mah,Discharger Plug:Round Banana Plug connector.Please make sure your toy use the same plug

★ Size: L94.5*W34*H17.6mm(±1mm).Weight:128G,Fit for RC Aircraft and RC Buggy

HQRP® Rechargeable Battery;

Battery Voltage: 12V; Capacity: 2200 mAh; Ni-Mh;

Сompatible with Original Battery;

🔋【2600mAh Ultra Higher Capacity】：Extra large capacity Xbox one rechargeable battery pack of 4 - up to 2600mAh. Surpasses other name brand batteries.（Not fit for xbox 360!）

🔋【20-25 Hours Game Time】：Charger station can charge up to 4 batteries simultaneously. It only takes 5 hours to fully charge 4 xbox one controller batteries. A single battery provides up to 25 hours of play time, saving you a lot of time and affording much more gaming time.

🔋【Unique LED indicator design】： Xbox one battery charger has a clear LED charging status indication, when charging, the indicator will change to red. When fully charged, the indicator will change to green.

【Indicators】- Red light on means charging; Green light on means full

【Compatibility】- Compatible with Parrot Bebop 2 drone Charger.

【Charging Time】- It takes about 100 minutes to fully charge

Replacement Balance Charging Hub 3-Ch for Hubsan ZINO H117S Pro RC Drone

Charges 3 battery channels in one go for your drone battery charging needs

Built-in Intelligent charging Protection Model against overcharge, overcurrent, overvoltage, short-circuit, overload, and overheat

Compatible with Dewalt 20V Max Lithium-Ion Batteries DCB SERIES DCB606 DCB206 DCB205 DCB206 DCB204 DCB203 DCB200 DCB201 and more. Converting your battery into DIY Rc Car Toys, Robotics and Rc Truck power supply.

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. On/Off swith to contral the battery easily.

6V 900mAh AA Ni-CD Rechargeable Battery With Red JST Plug, Battery dimensions: L70*W50*H14.5mm/2.8*1.97*0.57 inch.

fit for new version Fisca Blomiky KKNY TEMA1985 Huina 540 1540 6 Channel 2.4G RC dump truck 4 Wheel Driver Mine Construction Alloy Metal Vehicle Truck

fit for new version Cradream Fisca Blomiky KKNY Huina 520 1520 TopRace 6 Channel Full Functional Front Loader 6 Channel RC Bulldozer.

PROLONG BATTERY LIFE &USAGE TIME: There is trickle current and smart charging manage system, the battery pack will be charged more fully and more balanced. Built-in protections guards against over-charge, over-current, short circuit and reverse polarity, protects your battery and extend life.

INTUITIVE CHARGE INDICATOR: LED light on the charger stays in Red during charging process and turns blue when battery is fully charged. Flashing red indicates that there is a bad connection. The blinking red and blue indicator indicates that the battery polarity is inversely connected. The universal 100-240V AC input enables this charger to be used anywhere.

AUTO STOP SMART BATTERY CHARGER: If you plug in power, this Rc charger will automatically detect the battery voltage and match the right current to charge, it will shut off when battery is fully charged in order to avoid over-charge.Charging time is 6-10 hours depends on your battery capacity.

Fast Charging Cord: 7.4V/2A output USB charger cable with XH-3P connector ,Quick charging your 7.SV/2S Lipo Battery in short time, Just enjoy the fun of gaming .

Upgraded Design: Upgraded XH-3P connector , fully protect the easy broken plug, make the charger cord more durable . Input: DC 5V, Output current: 7.4V 2000mA - XH-3pin,20 Inch/51cm full length

Widely Fit: Work with most of RC Car Quadcopter ,RC Boat, RC Drone,and RC Truck and 7.4V Electric Water Ball Gun with 7.4 /2S XH-3P battery, Compatible with 7.4v Electric Water Ball Gun Skytech TKKJ H1100 H101 H102 H103 H105 H106 H108 RC Boat battery; Hosim Q903 Q905 Axial SCX10;Zeee FlourenTattu Goldbat OVONIC HRB 7.4V 2S 2 Cell Li-ion or Lipo Battery ;

Traxxas 7521R - Charger AC, 350 mAh 5-Cell, NiMH

Features: AC powered wall type charger for the 5-cell battery supplied with the Latrax Rally car. LED indicator changes from red to green to indicate full charge. Fully charges battery in approximately 3.5 hours

Includes: (1) Charger

【Suitable For】Only For the SYMA X5SW X5SC X5SC-1 Four-axis Helicopter Quadcopter

【Battery data】Capacity:1200mAh , Voltage:3.7V ,Battery Weight :28g/pc ,Battery Size : 2.2inch x 1.1inch x0.35inch

【Charger data】5-Port Smart Charger ,charge each cell separately ,Red light on charging Red light off charging complete

【Suitable For】the Battery for Syma X5C X5C-1 X5 X5SW X5SC V930 FQ36 CW4 SS40 S5C S5W RC Quadcopter

【Battery data】Capacity:800mAh , Voltage:3.7V ,Weight: about 19g each battery

【Charger data】5-Port Smart Charger ,charge each cell separately ,Red light on charging Red light off charging complete,charge 5 batteries at the same time

KSC-25 Charger can charge KNB-35L KNB-55L KNB-57L Li-ion battery and KNB-26N KNB-56N Ni-MH battery.

Compatible with Kenwood Radio TK2140 TK2160 TK2170 TK2360 TK3140 TK3160 TK3170 TK3360 NX220 NX320.

You can charge your batteries separately or charge radio with battery installed.

MD380 7.4V 2200mAh Li-ion High Capacity Battery.

Compatible for MD-380 MD-380GPS MD-380V MD-380U MD-446 RT3 Two Way Radio.

You can charge 6 radios or batteries at the same time. Time saving and more effetive.