For hobbyists and DIY electronics, a reliable 3.7V 750mAh battery can power a range of devices from cameras to small robotics. This guide highlights five top options with JST PH2.0mm or similar connectors, focusing on capacity, safety features, and compatibility. Each product is evaluated on real-world considerations like polarity, size, and protection circuitry to help you choose with confidence.
| Product | Brand | Capacity | Connector |
|---|---|---|---|
| AKZYTUE 3.7V 750mAh | AKZYTUE | 750mAh | PH2.0mm JST |
| EEMB 3.7V 750mAh | EEMB | 750mAh | JST Connector |
| KBT 3.7V 750mAh 602060 | KBT KEEP BETTER TECH | 750mAh | 2.54 JST |
| YTKavq 3.7V 750mAh | YTKavq | 750mAh | PH2.0mm JST |
| Qimoo 603038 3.7V 750mAh | Qimoo | 750mAh | PH2.0mm JST |
Note: Always verify connector type, polarity, and battery size to ensure compatibility with your device. Mismatches can damage both battery and device. The following sections provide detailed product insights and buying guidance.
AKZYTUE 3.7V 750mAh Battery
The AKZYTUE battery is a 3.7V Li-Polymer pack rated at 750mAh. It includes a PH 2.0mm JST connector with a 5 cm cable and a compact form factor (approximately 7 x 20 x 45 mm). Caution is advised regarding polarity and connector compatibility to prevent damage to the host device. Maximum charging voltage is 4.25V with a suggested charging current up to 375mA. The unit weighs about 12 g and is designed for devices that require a small, reliable power source.
EEMB 3.7V 750mAh Li-Polymer Battery
The EEMB battery provides 3.7V and about 750mAh capacity with a JST-style connector. Pros include a listed polarity caution and a PCM protection suite that guards against overcharging, over-discharge, over current, short circuits, and overheating. Size is around 5.5 x 30.5 x 50 mm, and weight is near 15 g. This battery emphasizes safety and reliability for sensitive electronics and is suitable for devices where precise connector polarity is confirmed beforehand.
KBT 3.7V 750mAh Li-Polymer Battery
The 602060 form-factor measures 20x60x6 mm with a 2.54 JST connector, designed for dash cameras, small cameras, baby monitors, headlamps, and GPS devices. It carries a 3.7V rating and 750mAh capacity. Safety is emphasized through factory testing including UN38.3 and other vibration and thermal tests. The battery is positioned for devices that require a compact, robust Li-Polymer cell with a standard JST connection.
YTKavq 3.7V 750mAh Battery
The YTKavq option mirrors the AKZYTUE design, offering a 3.7V 750mAh Li-Polymer cell with a PH 2.0mm JST connector. It includes a cautionary note about ensuring connector type, polarity, and battery size alignment with your device to avoid damage. The dimension and weight are similar to other 603038-style packs, making it a direct substitute for many compact electronics projects that require a reliable, small Li-Po battery.
Qimoo 603038 3.7V 750mAh Battery
The Qimoo 603038 pack specifies a 3.7V Li-Polymer cell with 750mAh capacity and a JST PH2.0mm connector. Included cautions highlight checking polarity and connector compatibility, as incorrect pairing can damage devices. Physical dimensions are about 38 x 30 x 6 mm, with a 5 cm (2″) connector lead. This makes it a good fit for compact devices that prioritize a slim profile and stable energy delivery, especially where JST PH2.0mm is the standard interface.
Buying Guide
Key factors to consider when selecting a 3.7V 750mAh battery for your device:
- Connector compatibility: PH2.0mm JST and 2.54 JST are common; verify the exact model used by your device to avoid mismatches that can prevent charging or cause damage.
- Polarity and orientation: Incorrect polarity can permanently damage electronics. Confirm the device’s connector polarity before purchase.
- Size and weight: Battery dimensions must fit the device’s battery compartment; lighter packs are preferable for small wearables or remote controls.
- Capacity and chemistry: 750mAh is a typical capacity for Li-Polymer cells in compact devices. Ensure the chemistry (Li-Po) matches your device requirements.
- Protection features: PCM/overcharge, over-discharge, short-circuit, and temperature protections enhance safety and longevity, especially in portable electronics.
- Certification and safety tests: Look for batteries that have undergone standard safety verifications (e.g., UN38.3) for secure shipping and operation.
- Application fit: Some batteries are intended for specific devices like dash cameras, Arlo cameras, or remote controls. Verify that your device’s voltage, size, and connector match the listed specs.
Overall, the five batteries highlighted here provide solid options for projects or replacements requiring a 3.7V, 750mAh Li-Polymer cell with JST PH2.0 or similar connectors. When selecting, prioritize compatibility, safety features, and the device’s physical constraints to ensure reliable performance and a safe charging experience.