Shenzhen Resky Electronics Co., Ltd.
Aims to be a premier solution provider for high quality, efficient, safe, environmental power
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| NO. | Items | Specifications |
|---|---|---|
| 1 | Batteries | 3.7v 250mah lipo battery |
| 2 | Charge voltage | 4.2V |
| 3 | Nominal voltage | 3.7V |
| 4 | Nominal capacity | 250mAh @ 0.2C Discharge |
| 5 | Charge current | Standard Charging: 0.5C Rapid charge: 1.0C |
| 6 | Standard Charging method | 0.5C CC charge to 4.2V, then CV charge till current ≤0.05C |
| 7 | Charging time | Standard: 2.75 hours (Ref.) Rapid: 2 hours (Ref.) |
| 8 | Max. charge current | 1.0C |
| 9 | Max. discharge current | 1.0C |
| 10 | Discharge cut-off voltage | 2.75V (0.2C) |
| 11 | Operating temperature | Charging: 0°C ~45°C Discharging: 0°C ~45°C |
| 12 | Storage temperature | -10°C ~ +45°C |
| 13 | Dimension | Length: 50±2mm Width: 20±0.5mm Thickness: 5±0.2mm |
| 14 | Drop Test | 1m drop onto concrete twice. No fire, no leakage |
| 15 | Cycle time | ≥500 cycles |
Difference for Li(NiCoMn)O₂ and LiMn₂O₄ lithium battery:
1. Ternary Lithium Batteries: The Preferred Choice for High-Performance Applications
Core Advantages: Energy density is approximately 1.5 times that of lithium manganese oxide; smaller size and lighter weight for the same capacity, suitable for devices with high portability and long battery life requirements; higher discharge rate, meeting the instantaneous high current demands of drones, power tools, etc.; longer cycle life, lower long-term operating costs; superior low-temperature performance, maintaining stable power supply even in extreme low-temperature environments.
Main Disadvantages: Significantly higher cost than lithium manganese oxide, more susceptible to fluctuations in the prices of precious metals such as cobalt and nickel; lower safety than lithium manganese oxide, higher risk under extreme conditions (high temperature, overcharge), requiring high-quality protection boards and heat dissipation designs.
Typical Applications: High-end smartphones, laptops, drones, power tools, mid-to-high-end portable digital devices, new energy vehicles (mainstream models), etc.
2. Lithium Manganese Oxide Batteries: Low-Cost Basic Applications
Core Advantages: Cost is the biggest highlight; raw materials are readily available and priced stably, making them suitable for cost-sensitive entry-level devices; safety is superior to ternary lithium batteries, with better thermal stability at high temperatures and lower risks from overcharging and compression; nominal voltage is the same as ternary lithium batteries (3.7V), requiring no additional adjustments to the power management circuit, resulting in strong compatibility; basic low-temperature performance meets standards, satisfying the needs of ordinary outdoor low-temperature scenarios.
Main Disadvantages: Low energy density, resulting in larger size and weight for the same capacity, making them unsuitable for thin and light devices; shorter cycle life, with faster capacity decay after long-term use; manganese is easily dissolved, leading to generally poor structural stability during high-temperature cycling; limited discharge rate, unable to meet the needs of high-power devices.
Typical Applications: Entry-level digital devices (low-end mobile phones, ordinary MP3 players), portable small appliances (inexpensive Bluetooth speakers, small flashlights), low-end power tools, energy storage devices (low-speed electric vehicles, backup power supplies), children's toys, etc.
Main Applications:
Smart wearable micro devices: Small smart bracelets, children's GPS watches (mini version), mini motion trackers. The mini size does not increase wearing burden, and the 250mAh capacity provides 1-2 days of low-power use (supports basic functions such as location tracking and step counting).
Miniature Digital Devices: Mini Bluetooth headsets (single ear), miniature voice recorders, ultra-small MP3 players, miniature cameras (pinhole/wearable), supporting 3-6 hours of use with low power consumption.
IoT Miniature Terminals: Miniature wireless sensors (temperature and humidity, door and window sensors), RFID smart tags, miniature data collectors; low self-discharge rate suitable for long standby times, miniature size for concealed installation.
Portable Miniature Medical Devices: Children's fingertip blood glucose meters, mini pulse oximeters, miniature massagers (acupressure massage); ternary materials ensure stable discharge, meeting the precise power supply needs of miniature medical devices.
Small Toys and Models: Miniature remote control cars, miniature drones (children's toy models), miniature robots; compact size fits the lightweight design of toys, low-rate discharge meets the basic power needs of toys.
Miniature Backup Power Supplies: Miniature auxiliary power supplies for smart door locks, emergency power supplies for small electronic devices (such as miniature voice recorders); small capacity is perfect for short-term emergency power supply scenarios.
