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Dropped from 1m height twice onto concrete ground (no fire, no leakage)
Cycle Life
≥500 times
Key Features & Advantages
602248 3.7V 650mAh li‑polymer battery delivers optimized power for small electronics
Slim shape saves installation space and reduces device weight
650mAh real capacity extends runtime without frequent recharging
Multi‑protection PCM and aluminum‑plastic film ensure safe daily use
Certified for global markets with long cycle life and low self‑discharge
No memory effect and wide temperature adaptability for indoor and outdoor use
Stable performance and high compatibility for cost-effective power solutions
Applications
Smart Wearables
smart watches, fitness trackers, health monitors, wearable sensors
Portable Audio
Bluetooth speakers, TWS earbud charging cases, headphones, microphones
Personal Care
beauty instruments, facial massagers, electric brushes, skin care devices
Consumer Electronics
GPS navigators, voice recorders, remote controls, LED lights, electronic toys
Smart Home & Security
video doorbells, wireless sensors, smart locks, tracking devices
Industrial & Medical
handheld testers, portable medical devices, small instruments, IoT sensors
OEM/ODM Services & Quality Guarantee
We support full OEM/ODM customization for 602248 3.7V 650mAh li‑polymer battery, including:
Wire length and connector types (JST, PH, XH, etc.)
Protection board parameters and specifications
Custom labels and packaging solutions
All cells undergo strict incoming inspection, aging tests, and safety verification. We provide stable mass production, on‑time delivery, and professional technical support.
Our quality guarantee ensures consistent performance, reliable safety, and full compliance with international standards.
Advantages of 3.7V Li-Polymer vs 3.2V LiFePO4 (LFP) Li-Polymer Batteries
Higher Nominal Voltage
3.7V lithium polymer provides higher working voltage than 3.2V LiFePO4, delivering stronger power output and better performance in small electronics.
Higher Energy Density
Traditional 3.7V li-polymer offers higher capacity and energy density in the same dimensions, supporting longer runtime for compact devices.
Wider Application Compatibility
Matches the charging and discharging logic of most small smart devices, with better compatibility and simpler circuit design.
More Mature Production
Stable supply chain, lower cost, and higher consistency for mass production compared to LiFePO4 polymer in small-capacity sizes.
Better Low-Temperature Performance
Performs more stably in cold environments than most 3.2V LiFePO4 batteries, making it suitable for outdoor and portable devices.
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 ...
