3.7V 7500mAh 18650 Li-ion Battery Pack with ZHR-2P Connector
Power your devices for longer with this robust 3.7V 7500mAh 18650 battery pack. Delivering 27.75Wh of energy, this rechargeable lithium battery features a built-in protection circuit for enhanced safety. With a compact footprint (68.5mm x 56.5mm x 19.5mm) and a standard ZHR-2P connector, it is the ideal drop-in replacement for portable electronics requiring reliable, high-capacity power.
Description
Model 18650 – High Capacity Lithium Battery Pack
Voltage: 3.7V | Capacity: 7500mAh (27.75Wh) | Size: 68.5×56.5×19.5mm

Maximize your device’s uptime with this premium 18650 Lithium Battery Pack. Engineered for stability and longevity, this battery utilizes high-quality 18650 cells to provide consistent voltage and extended runtime. The integrated protection circuit actively guards against overcharging, over-discharging and short circuits, ensuring safe operation in demanding environments.
Designed for versatility, the pack comes equipped with durable UL1571 AWG24 wires and a reliable ZHR-2P connector, simplifying installation for both OEM manufacturers and DIY enthusiasts. Whether you are upgrading an older device or building a new project, this 27.75Wh battery offers the perfect balance of size and power density.
Technical Specifications
| Battery Type | Lithium Ion Battery |
| Part Number | 18650 |
| Voltage @ Capacity | 3.7V @ 7500mAh (27.75Wh) |
| Protection Circuit | Yes (PCM Included) |
| Thermistor (NTC) | / |
| Wires | UL1571 AWG24 50mm |
| Connector | ZHR-2P |
| Dimensions (L x W x T) | 68.5mm x 56.5mm x 19.5mm |
| Charge Current | 0.2C to 0.5C (Standard Charge) |
| Discharge Current | 0.5C to 1.0C (Continuous) |
| Storage Temperature | -20°C to +60°C |
Core Advantages
- ✔
Extended Runtime: Massive 7500mAh capacity significantly outperforms standard single-cell batteries, reducing recharging frequency. - ✔
Built-in Safety: Internal PCM prevents damage from voltage spikes, ensuring safety of both battery and connected devices. - ✔
Compact & Efficient: Maintains a slim 19.5mm profile despite high capacity, fitting easily into tight spaces. - ✔
Plug-and-Play Design: Pre-installed ZHR-2P connector and 50mm wires enable quick, solder-free installation.
Perfect For Applications
Bluetooth speakers, amplifiers and recording devices.
Tablets, e-readers and handheld gaming consoles.
Portable monitors and diagnostic tools requiring stable 3.7V power.
Custom power banks, robotics and Arduino/Raspberry Pi projects.
High-brightness portable lamps and emergency lighting systems.
Customization Services (OEM/ODM)
We understand that every application is unique. Our professional OEM and ODM customization services allow you to tailor this battery to your specific needs:
- Connector Options: Replace ZHR-2P with JST, Molex, DC plugs or bare wires as required.
- Wire Length & Gauge: Customize cable length and thickness to fit your internal assembly.
- Capacity Configuration: Adjust cell arrangement (series/parallel) for different voltage or capacity requirements.
- Labeling: Add brand logos, barcodes or specific regulatory markings (CE, RoHS, UN38.3) to battery shrink wrap.











