Best 4 V Batteries in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 500mAh；Maximum Charge Voltage/Current: 4.25V/250mAh; Material: Lithium Polymer.
Connector Type: PH 2.0mm；Size: 5 x 20 x 52mm / 0.2" x 0.79" x 2.05"(T*W*L); Cable Length: 5cm / 2"; Net Weight: 10g.
NOTE: The 3.7V 500mAh 502248Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones， Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
Voltage: DC 3.7V; Capacity: 680mAh
Material: Lithium Polymer; Net Weight: 15g
Size: 30 x 25 x 10mm / 1.18" x 0.98" x 0.39" (L*W*T)
Connector Type: 2P PH2.0mm Pitch; Cable Length: 5cm / 2"
Package Content: 1 x Lithium Polymer Battery
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 350mAh；Maximum Charge Voltage/Current: 4.25V/175mAh; Material: Lithium Polymer.
Connector Type: PH2.0mm ;Size: 6.0 x 20 x 37mm / 0.24" x 0.79" x 1.46"(T*W*L); Cable Length: 5cm / 2" ;Net Weight: 10g.
NOTE: The 3.7V 350mAh 602035 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.79 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 350mAh；Maximum Charge Voltage/Current: 4.25V/175mAh; Material: Lithium Polymer.
Connector Type: PH 2.0mm ; Size: 7 x 20 x 25mm / 0.25" x 0.79" x 0.98" (T*W*L); Cable Length: 5cm / 2"; Net Weight: 8g.
NOTE: The 3.7V 350mAh 802025 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter, Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: DC 3.7volt; Capacity: 200mAh; Maximum Charge Voltage/Current: DC4.25V/100mAh; Material: Lithium Polymer.
Connector Type: PH2.0mm Pitch; Cable Length: 5cm / 2"; Size: 5 x 20 x 25mm / 0.2" x 0.79" x 0.98" (T*W*L); Net Weight: 6g.
NOTE: The 3.7V 200mAh 552025 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, Model aircraft , Plane, Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 100mAh；Maximum Charge Voltage/Current: 4.25V/50mAh; Material: Lithium Polymer.
Connector Type: PH2.0mm ;Size: 4.0 x 20 x 22mm / 0.16" x 0.79" x 0.87"(T*W*L); Cable Length: 5cm / 2" ;Net Weight: 4g.
NOTE: The 3.7V 100mAh 402020 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.79 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 150mAh；Maximum Charge Voltage/Current: 4.25V/75mAh; Material: Lithium Polymer.
Connector Type: PH2.0mm ;Size: 3 x 25 x 32mm / 0.12" x 0.98" x 1.26"(T*W*L); Cable Length: 5cm / 2" ;Net Weight: 6g.
NOTE: The 3.7V 150mAh 302530 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter，Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 1225mAh；Maximum Charge Voltage/Current: 4.25V/612.5mAh; Material: Lithium Polymer.
Connector Type: PH2.0mm ;Size: 8 x 30 x 49mm / 0.31" x 1.18" x 2.0"(T*W*L); Cable Length: 5cm / 2" ;Net Weight: 18g.
NOTE: The 3.7V 1225mAh 802748 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 8000mAh；Maximum Charge Voltage/Current: 4.25V/4000mAh; Material: Lithium Polymer.
Connector Type: PH 2.0mm；Size: 7.5 x 65 x 122mm / 0.3" x 2.56" x 4.8"(T*W*L); Cable Length: 5cm / 2"; Net Weight: 130g.
NOTE: The 3.7V 8000mAh 7565121 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones， Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
Voltage: DC 3.7V; Capacity: 120mAh
Material: Lithium Polymer; Net Weight: 4g
Size: 20 x 13.5 x 5.5mm / 0.79" x 0.53" x 0.22" (L*W*T)
Connector Type: 2P PH2.0mm Pitch; Cable Length: 5cm / 2"
Package Content: 1 x Lithium Polymer Battery
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 650mAh；Maximum Charge Voltage/Current: 4.25V/325mAh; Material: Lithium Polymer.
Connector Type: PH 2.0mm；Size: 7.2 x 19 x 45mm / 0.28" x 0.79" x 1.77"(T*W*L); Cable Length: 5cm / 2"; Net Weight: 14g.
NOTE: The 3.7V 650mAh 721944 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones， Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | ✅ | ✅ | ✅ |
WARNING: The batteries connectors type are all JST PH2.0MM . —THE CONNECTORS ARE NOT UNIVERSAL! ! !— Please make sure that the CONNECTOR TYPE, POLARITY , and BATTERY SIZE match your device before purchasing. —If the POLARITY of the connector DOES NOT MATCH that of your device, it will DAMAGE the device or the new battery.—
Voltage: 3.7volt; Capacity: 1200mAh；Maximum Charge Voltage/Current: 4.25V/600mAh; Material: Lithium Polymer.
Connector Type: PH 2.0mm；Size: 5 x 36 x 66mm / 0.2" x 1.42" x 2.6"(T*W*L); Cable Length: 5cm / 2"; Net Weight: 21g.
NOTE: The 3.7V 1200mAh 503365 Lithium Battery is NON-POWER BATTERY! ! ! It can not be used for power device that require high current such as UAV, mini RC Helicopter,RC small drones， Model aircraft , Electric toys, Power tools and other.
Application：Suitable for MP3/MP4, Bluetooth wireless headset,GPS, baby monitor, game boy, skybell ,smart watch,monitoring units, POS machine, dashcam, mobile power, Bluetooth speaker, VR glasses, beauty devices, pet tracker,ring video doorbell etc.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Ydl | 12 |
We've carried out a comprehensive analysis of 578 reviews on batteries, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select batteries priced around $9.98, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 12 batteries for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right batteries Products based on their needs, saving them considerable time when choosing which batteries to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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