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Rated at 7.4V nominal voltage and 5000mAh (0.2C discharge) capacity, this APTPES lithium battery pack targets water quality testers where space and weight constraints are critical. The 21700 cylindrical cell architecture configured as 2 Series 1 Parallel (2S1P) provides balanced energy density. A built-in protection IC safeguards against overcharge, over-discharge, and short circuits. Factory-assembled with terminal wires for plug-and-play integration. Contact our engineering team for customization inquiries.
Integrated Multi-Protection Circuit: The built-in protection IC monitors 7.4V cell voltage in real time, guarding against overcharge, over-discharge, overcurrent, and short circuits. This prevents catastrophic cell failure during abnormal operating conditions.
Precision Cell Matching: Each 21700 cylindrical cell undergoes capacity grading and internal resistance sorting before assembly into the 2 Series 1 Parallel (2S1P) configuration. This matching process ensures uniform charge and discharge across all cells, extending pack lifespan and maintaining voltage stability.
Factory-Tested Quality Assurance: Every battery pack completes a full electrical testing cycle at our Dongguan facility, including charge retention verification, protection board trigger validation, and dimensional inspection. Test reports accompany each batch shipment for OEM traceability.
Global Certification Compliance: Manufactured to meet CE, RoHS, UN38.3, and MSDS documentation requirements. These certifications enable duty-free import into EU markets and compliant air freight for international distribution channels.
Low Self-Discharge Design: Advanced 21700 cylindrical chemistry limits self-discharge to under 3% per month at room temperature. -20°C ~ +45°C (Recommended long-term storage at 30. This characteristic supports inventory rotation and device storage without frequent recharge maintenance.
Balanced Thermal Management: Cell spacing and wrapping materials facilitate passive heat dissipation during charge and discharge cycles. The pack design prevents thermal hotspots that accelerate cell degradation, contributing to consistent long-term performance.
Compact Energy Density: The 21700 cylindrical cell platform delivers high energy density relative to pack volume, making it suitable for portable and embedded applications.
| Battery Cell Model | 21700 Cylindrical Lithium-ion Battery Cell |
| Configuration | 2 Series 1 Parallel (2S1P) |
| Nominal Voltage | 7.4V |
| Full Charge Voltage | 8.4V (±0.05V) |
| Cut-off Voltage | 5.0V - 6.0V (Controlled by protection board) |
| Nominal Capacity | 5000mAh (0.2C discharge) |
| Energy | Approximately 37Wh |
| Continuous Discharge Current | 10A (Maximum, depending on cell specifications) |
| Instantaneous Peak Current | Up to 15A (≤3 seconds, depending on cell specifications) |
| Standard Charging Current | 1.0A - 2.5A (0.2C-0.5C) |
| Charging Voltage | 8.4V (Constant Voltage Constant Current) |
| Charging Method | Recommended to use a dedicated 7.4V lithium battery charger |
| Internal Resistance | ≤80mΩ (Including protection board, typical value) |
| Cycle Life | ≥500 cycles (Charged and discharged under standard conditions to 80% of initial capacity) |
| Operating Temperature | Charging: 0°C ~ +45°C / Discharging: -20°C ~ +60°C |
| Storage Temperature | -20°C ~ +45°C (Recommended long-term storage at 30%-60% charge) |
| Protection Functions | Overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, temperature protection (some models) |
| Wiring Configuration | Standard wires and common terminals (such as XT60, JST, spade connectors, etc., subject to actual product) |
| Dimensions/Weight | Approximately 74mm (Length) * 43mm (Width) * 22mm (Height) / Approximately 180g (For reference only, varies depending on configuration) |
This 7.4V 5000mAh (0.2C discharge) battery pack is engineered for water quality testers and related applications. Equipment manufacturers in the environmental monitors sector integrate this pack as a primary power source for portable and stationary devices. The stable voltage platform and protection circuitry make it suitable for field analytical instruments where reliability is non-negotiable. OEM customers in consumer electronics, medical devices, and industrial instrumentation have validated this pack for volume production.
A: The stated dimensions refer to the battery cell body. Wire terminals extend an additional 20-80mm beyond the cell dimensions. Reserve space for wire routing in your device housing design.
A: Compare your device's operating current against the pack's rated discharge capacity. For higher current requirements, OEM customization with alternative cell selection is available.
A: Each battery pack ships with CE, RoHS, UN38.3, and MSDS documentation. UN38.3 test summaries cover altitude, thermal, vibration, and impact testing required for air freight compliance. Material safety data sheets are available in English for customs and regulatory submission.
A: Store packs at -20°C ~ +45°C (Recommended long-term storage at 30%-60% char. Maintain charge level between 30-50% for long-term storage. Perform a maintenance charge every 6 months to prevent deep discharge degradation. Avoid storing in direct sunlight or high-humidity environments.
A: MOQ is flexible based on cell availability and customization requirements. Standard configurations ship within 7-15 business days. Custom OEM orders with modified wire lengths, connectors, or protection parameters require 15-25 business days including prototype sampling. Contact our sales team for a detailed quotation.
This 7.4V 5000mAh (0.2C discharge) battery pack is a standardized industrial component sourced directly from APTPES manufacturing facilities in Dongguan, China. By eliminating intermediaries, we offer competitive tiered pricing for volume procurement alongside flexible MOQ arrangements. Our engineering team provides comprehensive OEM/ODM customization including wire length modification, connector selection, cell capacity adjustment, and protection board recalibration. From initial specification review to production sampling and quality validation, we support your project through the complete product lifecycle. Contact us to discuss your requirements.
Share the voltage, capacity, dimensions and quantity you need. Our engineers reply with a tailored OEM/ODM quotation within 24 hours.