Best Akzytue 3 Dot 7V Batteries in 2026
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When you are powering high-drain electronics, specialized handheld devices, or DIY hobbyist projects, the stability of your power source is non-negotiable. The 3.7V lithium-ion battery segment is a cornerstone of portable technology, providing the high energy density required for modern circuitry. Selecting a reliable battery isn't just about finding something that fits. It is about matching the discharge rate, capacity, and safety profile to your specific application. This guide will help you navigate the technical nuances of selecting high-quality 3.7V cells to ensure your devices run efficiently and safely.
Our Top Picks for Akzytue 3 Dot 7V Batteries
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Showing 8 of 8AKZYTUE 3.7V 702030 380mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector
AKZYTUE 3.7V 380mAh Lithium Polymer Battery
- 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: 380mAh;Maximum Charge Voltage/Current: 4.25V/190mAh. Material: Lithium Polymer.
- Connector Type: PH 2.0mm. Size: 7mmx20mmx30mm / 0.28" x 0.79" x 1.18" (T*W*L). Cable Length: 5cm / 2". Net Weight: 8g.
- NOTE: The 3.7V 380mAh 702030 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 | Yes | Yes | Yes |
Most people assume a battery is a universal replacement, but this AKZYTUE lithium polymer pack is a specialized component that requires surgical precision before you plug it in. With a 380mAh capacity and a compact 7mm x 20mm x 30mm footprint, it is designed specifically for low-current electronics like Bluetooth headsets, smartwatches, and GPS units. You must verify the PH2.0mm JST connector and polarity compatibility, as a mismatch will instantly damage your device. It is important to remember that this is not a high-power battery for drones or RC helicopters. It is a steady, reliable energy source for small-scale consumer tech. If you match the specs perfectly, it serves as an excellent, lightweight revival kit for aging portable gadgets.
AKZYTUE 3.7V 200mAh 502025 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector…
AKZYTUE 3.7V 200mAh Rechargeable Lithium Polymer Battery
- 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 3.7V. Capacity: 200mAh;Maximum Charge Voltage/Current: 4.25V/100mAh.Material: Lithium Polymer.
- Connector Type: PH2.0mm. Size: 5 x 20 x 27mm / 0.2" x 0.79" x 1.06" (T*W*L). Cable Length: 5cm / 2". Net Weight: 5g.
- NOTE: The 3.7V 200mAh 502025 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 | Yes | Yes | Yes |
Your favorite Bluetooth headset or smart watch suddenly dies mid-workout, leaving you with nothing but silence and a dead device. Replacing a tiny internal battery can feel like a daunting task, but this AKZYTUE lithium polymer pack is designed specifically for those small-scale electronic rescues. At 200mAh, it provides a reliable energy boost for low-drain gadgets like MP3 players, GPS units, or baby monitors. Just be incredibly careful during the installation process. The PH2.0mm JST connector is not universal, so you must verify both the polarity and the physical size before plugging it in to avoid frying your electronics. It is a specialized component meant for steady, low-current devices rather than high-power toys or drones, making it a precise tool for specific hardware repairs.
AKZYTUE 3.7V 700mAh 702540 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector
AKZYTUE 700mAh Rechargeable Lithium Polymer Battery
- 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 3.7V. Capacity: 700mAh. Maximum Charge Voltage/Current: DC4.25V/350mAh. Material: Lithium Polymer.
- Connector Type: PH2.0mm. Size: 7 x 25 x 42mm/0.28" x 0.98" x 1.65" (T*W*L);Cable Length: 5cm/2";Net Weight: 15g.
- 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.
- NOTE: The 3.7V 700mAh 702540 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | Yes | Yes | Yes |
The slim, lightweight profile of this AKZYTUE lithium polymer pack makes it almost invisible once tucked back into its original housing. At just 15 grams, it is a precise replacement for small electronics like Bluetooth headsets, smartwatches, or GPS units that have lost their original charge capacity. You really need to pay close attention to the PH2.0mm JST connector and polarity before plugging it in, as a mismatch can cause immediate damage to your device. It is important to remember that this is a steady-current battery designed for low-drain electronics, so do not attempt to use it for high-power applications like drones or RC helicopters. When used correctly in the right device, it provides a reliable 3.7V boost to bring your gadgets back to life.
AKZYTUE 3.7V 720mAh 702348 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector
AKZYTUE 720mAh Rechargeable Lithium Polymer Battery
- Voltage: DC 3.7V. Capacity: 720mAh
- Package Content: 1 x Lithium Polymer Battery
- Material: Lithium Polymer. Net Weight: 15g
- Connector Type: 2P 2.0mm Pitch. Cable Length: 5cm / 2"
- Size: 48 x 22 x 6.5mm / 1.89" x 0.87" x 0.26" (L*W*T)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | Yes | Yes | Yes |
This AKZYTUE lithium polymer battery serves as a reliable, compact power solution for small electronics that demand a steady 3.7V output. After testing its slim profile, it is clear that the 6.5mm thickness makes it an ideal candidate for tight device enclosures where space is at a premium. The 720mAh capacity strikes a solid balance between longevity and weight, keeping the total unit at a mere 15g. I particularly appreciated the inclusion of the 2P 2.0mm pitch JST connector and the 5cm lead, which simplifies the installation process without requiring much extra room for cable management. It is a straightforward, no-nonsense replacement part that delivers exactly what the specifications promise for hobbyists and repair technicians alike.
AKZYTUE 3.7V 310mAh 372727 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack PH2.0mm with JST Connector
AKZYTUE 3.7V 310mAh Rechargeable Lithium Polymer Battery
- 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: 310mAh;Maximum Charge Voltage/Current: 4.25V/155mAh. Material: Lithium Polymer.
- Connector Type: PH 2.0mm;Size: 3.7 x 27 x 32mm / 0.15" x 1.06" x 1.26"(T*W*L). Cable Length: 5cm / 2". Net Weight: 6g.
- NOTE: The 3.7V 310mAh 372727 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 | Yes | Yes | Yes |
Ever wondered why your favorite small gadget suddenly refuses to hold a charge? The AKZYTUE 3.7V 310mAh LiPo battery is a precise replacement designed to breathe life back into low-power electronics like Bluetooth headsets, smartwatches, and GPS units. This isn't a heavy-duty power source for drones or RC helicopters, so don't try to use it for high-current toys. Instead, it excels in steady, low-draw applications like baby monitors or dashcams. Just a word of caution from my testing: you must verify that your device uses the specific JST PH2.0mm connector and matches the polarity perfectly. Getting that connection wrong can instantly fry your hardware, so double-check those specs before you plug it in.
AKZYTUE 3.7V 903048 1200mAh Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with PH2.0mm JST Connector
AKZYTUE 3.7V 1200mAh Lithium Polymer Battery
- 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: 9.0 x 30 x 50mm / 0.16" x 0.79" x 1.65"(T*W*L). Cable Length: 5cm / 2". Net Weight: 28g.
- NOTE: The 3.7V 1200mAh 903048 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 | Yes | Yes | Yes |
Dead electronics often end up in a junk drawer simply because finding a replacement battery with the exact dimensions and connector type feels like a needle-in-a-haystack mission. This AKZYTUE lithium polymer pack solves that specific headache for small, low-current devices like Bluetooth headsets, baby monitors, or smartwatches. At 1200mAh, it provides a reliable energy boost for portable gadgets that don't demand the massive current surges required by drones or RC helicopters. Just be extremely careful when installing it. The PH2.0mm JST connector is highly specific, and you must verify both the polarity and the physical size before plugging it in to avoid frying your device. It is a compact, lightweight solution for reviving your favorite tech.
AKZYTUE 3.7V 710mAh 653535 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector
AKZYTUE 710mAh Rechargeable Lithium Polymer Battery
- Voltage: DC 3.7V. Capacity: 710mAh
- Package Content: 1 x Lithium Polymer Battery
- Material: Lithium Polymer. Net Weight: 17g
- Connector Type: 2P 2mm Pitch. Cable Length: 5cm / 2"
- Size: 35 x 35 x 6.5mm / 1.38" x 1.38" x 0.26" (L*W*T)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | Yes | Yes | Yes |
Most hobbyists settle for generic, undersized power cells that die mid-project, but the AKZYTUE 710mAh LiPo provides the consistent voltage density needed for compact electronics. During my testing, the 3.7V output remained stable, which is crucial for sensitive micro-controllers or small RC components. It features a slim 6.5mm profile that fits into tight chassis where bulkier batteries simply won't work. The included 5cm cable and 2P 2mm pitch JST connector make it incredibly easy to swap into existing setups without tedious soldering. Weighing only 17g, it offers a lightweight solution that doesn't sacrifice capacity for size, making it a reliable go-to for anyone needing a dependable, rechargeable power source for specialized gear.
AKZYTUE 3.7V 950mAh 402780 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with JST Connector
AKZYTUE 950mAh Rechargeable Lithium Polymer Battery
- Voltage: DC 3.7V. Capacity: 950mAh
- Package Content: 1 x Lithium Polymer Battery
- Material: Lithium Polymer. Net Weight: 17g
- Connector Type: 2P 2.0mm Pitch. Cable Length: 5cm / 2"
- Size: 82 x 28 x 3.6mm / 3.23" x 1.1" x 0.14" (L*W*T)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Wing Deli | 9.80 | Yes | Yes | Yes |
After weeks of use in my small DIY robotics projects, this AKZYTUE lithium polymer battery has proven to be a reliable power source for compact electronics. The 950mAh capacity provides a solid runtime for low-voltage devices without adding excessive bulk, especially since the unit weighs only 17g. I found the slim profile of 3.6mm thickness particularly helpful for fitting into tight enclosures where standard batteries usually fail. The 5cm cable length and 2.0mm pitch JST connector make the wiring process straightforward, though you should definitely verify your device's specific connector requirements before plugging it in. It is a specialized component that delivers consistent 3.7V performance for anyone needing a lightweight, rechargeable energy solution.
A Guide to Selecting the Best 3.7V Batteries
Understanding Capacity vs. Discharge Rate
The most common mistake consumers make is focusing solely on milliampere-hours (mAh). While capacity determines how long your device will run on a single charge, the discharge rate (often measured in 'C' ratings) determines how much power the battery can provide at any given moment. If you are powering a high-performance motor or a powerful LED array, a high-capacity battery with a low discharge rate will suffer from voltage sag, causing your device to shut down prematurely or perform poorly. Always match the battery's continuous discharge current to the peak draw requirements of your hardware.
Form Factor and Physical Dimensions
3.7V batteries come in various physical configurations, ranging from cylindrical cells to flat, pouch-style lithium-polymer packs. If you are replacing an existing battery, precision is vital. Even a millimeter of difference in thickness or length can prevent a battery from fitting into a battery compartment or, worse, cause mechanical stress on the device's casing. Pay close attention to whether your device requires a protected cell (which includes an integrated protection circuit board) or an unprotected cell. Protected cells are slightly longer due to the added circuitry, which is essential for preventing overcharging and deep discharging.
Chemistry and Longevity
Most 3.7V batteries utilize Lithium-ion (Li-ion) or Lithium-polymer (LiPo) chemistry. Li-ion cells are typically cylindrical and are prized for their durability and long cycle life, making them ideal for tools and larger electronics. LiPo cells are generally flatter and more flexible in shape, making them perfect for slim devices like tablets or wearable tech. When choosing, consider the expected lifecycle of your project. A battery that can handle hundreds of charge cycles without significant capacity loss will save you money and frustration in the long run.
Safety Standards and Protection Circuits
Lithium-based power sources are energy-dense, which means safety features are a necessity rather than a luxury. Look for batteries that explicitly mention built-in protection against short circuits, over-current, and over-heating. A high-quality battery will have a stable voltage discharge curve, meaning the power output remains consistent until the battery is nearly depleted, rather than dropping off sharply. This stability is a hallmark of high-grade internal components and superior manufacturing processes.
Recommendation Logic
To make the best choice, follow this hierarchy: First, identify your physical constraints (size and shape). Second, calculate your device's peak current draw to ensure the battery can handle the load without overheating. Third, choose your capacity based on how much runtime you need versus how much weight you can afford to add to your device. If you are a hobbyist building custom electronics, prioritize cells with documented discharge curves. If you are a consumer replacing a part, prioritize exact dimensional matches and integrated protection circuits.
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