Engineered to power highly sophisticated portable electronics, our 502045 with UL1642 certification 500mah Li Polymer Battery stands out through its breakthrough electrode coating process, which slashes internal resistance (IR) variance to an industry-leading ±5%. This superior electrochemical stability allows the flat prismatic cell to deliver over 10 hours of continuous, uninterrupted runtime for demanding hardware like smart glasses, vehicle GPS trackers, handheld diagnostic testers, and wireless presentation clickers. Housed within a precise maximum footprint of 5.1 × 20.3 × 45.5mm, this high energy density Li-ion polymer pack is built using premium Ternary materials and LiCoO2 chemistry, ensuring a rigid, linear discharge curve and consistent peak efficiency under high-drain operational loads.
Safety and tailored engineering are the foundational pillars of this premium 502045 500mAh lithium polymer battery. Holding prestigious international clearances including UL1642, CB, IEC62133, ROHS, and UN38.3, this cell features heavy-duty, factory-integrated overcharge, over-discharge, and short-circuit protection networks to guarantee absolute thermal peace of mind during everyday use. As a premier OEM/ODM manufacturer operating from world-class facilities in Hunan and Guangdong, China, we welcome fully bespoke configurations — ranging from custom voltage parameters to specialized client-pointed connectors.
Nominal Voltage: 3.7V
Delivery Voltage: 3.85V ~ 4.205V
Nominal Capacity: 500mAh
Measurement: 5.1 × 20.3 × 45.5mm
| Item | Specification |
| Model | 502045 |
| Material | Li-ion Polymer Battery |
| Normal Capacity (0.2C) | 500mAh |
| Minimum Capacity (0.2C) | 500mAh |
| Energy | 1.85Wh |
| Normal Voltage | 3.7V |
| Delivery Voltage | 3.85V ~ 4.05V |
| Standard Charge Method | Charge at maximum current. When the battery or pack terminal voltage reaches the charging limit voltage, charge at constant voltage until the charging current is less than or equal to 0.02 C, then stop charging. |
| Discharge Program | The battery or the battery pack carries on the constant current discharge with the maximum discharge current to the discharge termination voltage. |
| Max Charging Current | 1C CC/CV → 0.02C cutoff |
| Max Discharging Current | 1C CC/CV → 3.0V cutoff |
| Over-Discharging Current | 2.3V |
| Operation Temperature Range |
Charging: 0°C ~ 50°C Discharging: -20°C ~ 60°C |
| Allowable Maximum Surface Temperature |
Charging: Tmax ≤ 50°C Discharging: Tmax ≤ 60°C |
| Storage T/H Range (time) |
-20°C ~ 60°C (Less than 1 month) -20°C ~ 45°C (Less than 3 months) -20°C ~ 25°C (Less than 1 year) |
| Cycle Life |
≥ 300 times (Thickness expansion rate ≤ 10%) ≥ 500 times (Thickness expansion rate ≤ 12%) |
Maximizing the power-to-weight ratio, this premium 502045 with UL1642 certification 500mah Li Polymer Battery is engineered with advanced micro-foils and low-density housing materials. It minimizes physical bulk without sacrificing structural integrity, delivering high energy density that makes it the absolute ideal internal power cell for weight-sensitive wearable tech like smart glasses, wireless audio devices, and micro-tracking hardware.
Built with high-purity Ternary elements and an optimized LiCoO2 electrochemical formulation, this 502045 500mAh lithium polymer battery drastically suppresses the internal chemical degradation that leads to swelling. This ultra-low gassing profile prevents the battery shell from puffing or expanding during long-term operations, protecting the outer casing of delicate portable medical devices or sleek consumer electronics from internal physical pressure damage.
The flat, prismatic layout combined with highly conductive internal current collectors allows this high-capacity cell to channel heat away from the core rapidly. By maintaining excellent self-cooling capabilities during rapid 1C charging or high-drain discharging cycles, it prevents thermal localized hotspots and keeps the surface temperature well within standard safety guidelines (Tmax ≤ 60°C), significantly extending overall hardware component longevity.
Unlike standard budget batteries that suffer severe capacity degradation when fully depleted, this robust 502045 Li-ion polymer battery is designed to withstand continuous deep discharging cycles. It can be drained deeply to its 3.0V termination cutoff repeatedly while still maintaining over 80% of its initial nominal capacity past 300 to 500 deep cycles, ensuring a significantly longer total operational lifespan for end-users.
This high-performance rechargeable cell features wide temperature adaptability, operating flawlessly under extreme environmental fluctuations. It allows stable, hazard-free energy charging from 0°C up to 50°C and delivers dependable, fade-free voltage output during harsh outdoor cold or heat ranging from -20°C all the way up to 60°C, guaranteeing year-round reliability for vehicle GPS trackers and rugged handheld testers.
The 502045 with UL1642 certification 500mah Li Polymer Battery serves as a versatile, ultra-reliable energy core for a wide spectrum of modern portable electronics:
Slim Computing Devices: Ideal for ultra-thin tablets, lightweight laptops, and energy-efficient e-readers requiring a flat, space-saving battery architecture.
Digital Imaging Hardware: Supplies stable, long-lasting power to high-resolution digital cameras and rugged, high-frame-rate action cameras.
On-the-Go Entertainment: Powers compact portable media players and wireless audio systems, delivering extended runtime for audio and video playback.
Smart Tracking & Security: Ensures consistent, uninterrupted connectivity and long standby cycles for mission-critical GPS tracking devices.
1. Standard export carton packaging or Custom-made Package
2. Mode of Transport:
(1) By express UPS/DHL/FEDEX/TNT (It takes 3-15 days to arrive)
(2) By air cargo (It takes about one week to arrive)
(3) By sea shipment (It takes about one month to arrive)
3. Delivery 4 – 25 working days after payment and packing confirmation.
To maintain strong connections with global hardware innovators, our company actively participates in premier international trade shows and electronics exhibitions every year. We routinely showcase our latest battery technologies across major global tech hubs, including key industrial exhibitions in Hong Kong, India, Japan, and the United States. These annual global events allow our engineering and business development teams to meet face-to-face with international procurement managers, discuss custom power solutions, and foster long-term strategic partnerships worldwide.
A1: Free samples can be offered. Customer should pay for the delivery. Sales team will follow up for testing and evaluation.
A2: We accept T/T (bank transfer), PayPal, Western Union.
A3: We provide 24 months warranty after shipping.
A4: We offer extended warranty up to 36 months maximum, with a 10% price increase for extended warranty.
A5: Production lead time is approx 3 – 10 days, depending on requirements. Shipping time via DHL/UPS/FedEx/TNT is approx 4 – 6 working days.
A6: We match professional PCM protection boards together with lithium cells.
Address
Xin'an Village industrial Park, Yonglejiang Town, AnrenCounty, Chenzhou City, Hunan Province, China
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