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High-performance 3.7V 250mAh lithium polymer battery pack designed for compact electronic devices requiring reliable power in a miniature form factor.
Product Specifications
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
Battery Technology Comparison
Ternary Lithium Batteries (Li(NiCoMn)O₂)
Preferred choice for high-performance applications
Energy density approximately 1.5 times that of lithium manganese oxide
Smaller size and lighter weight for same capacity
Higher discharge rate meets instantaneous high current demands
Longer cycle life with lower long-term operating costs
Superior low-temperature performance
Lithium Manganese Oxide Batteries (LiMn₂O₄)
Ideal for low-cost basic applications
Raw materials are readily available and priced stably
Superior safety with better thermal stability
Strong compatibility with existing power management circuits
Basic low-temperature performance meets standard requirements
Main Applications
Smart wearable micro devices: Small smart bracelets, children's GPS watches, mini motion trackers
Miniature digital devices: Bluetooth headsets, voice recorders, MP3 players, miniature cameras
IoT miniature terminals: Wireless sensors, RFID smart tags, data collectors
Portable medical devices: Blood glucose meters, pulse oximeters, miniature massagers
Small toys and models: Remote control cars, drones, miniature robots
Miniature backup power: Smart door locks, emergency power for small electronics
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2012
Total Annual:
500000-1000000
Employee Number:
20~50
Ecer Certification:
Verified Supplier
Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ... Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ...