A 7.4V battery pack is often the practical step up from a 3.7V single-cell system when a device needs more voltage without moving to a larger 12V architecture. Our 7.4V Lithium Battery Packs series includes products such as 7.4v 5000mAh Battery Pack, 7.4v 2000mAh Battery Pack, and so on.
HSS Energy supplies 7.4V lithium battery packs for compact electronics, portable equipment and OEM products built around a 2S lithium-ion platform. The standard chemistry is NCM, with 18650 and 21700 cells used according to runtime, current demand, available space and pack layout.
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Send Your Device Requirements for a Battery Pack Review Voltage • Capacity • Current • Battery Space • Connector • Quantity |
· the device is designed around a 2S lithium-ion input
· a 3.7V pack cannot provide enough operating voltage
· moving to 12V would add unnecessary size or circuit complexity
· the battery must fit a fixed compartment or connector layout
· the project needs an integrated protected pack rather than loose cells
Two 7.4V packs with the same capacity can behave very differently in the same product. Runtime, normal and peak current, battery space, cable direction, connector, charging method and protection requirements all affect the final design.
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7.4V is a system choice A 7.4V pack is normally a 2S lithium-ion battery. It should only be used where the device, charger and protection logic are designed for that voltage range. |
This category mainly uses NCM lithium-ion chemistry. 18650 cells are common for compact and widely standardized layouts, while 21700 cells can be useful when higher capacity or a different pack geometry is required.
Cell format should follow the device space, required runtime, current demand and pack dimensions rather than being selected as a standalone specification.
· capacity and cell model
· 18650 or 21700 cell route
· protection circuit / PCM
· connector type and polarity
· cable length and exit direction
· pack shape, insulation and wrapping
· label and branding
· prototype and bulk-production requirements
For a new device, sample validation helps confirm fit, connector position, runtime, charging behavior and basic electrical performance before the production specification is frozen.
1. required voltage and capacity
2. normal and peak current
3. battery compartment dimensions
4. preferred cell route - 18650 or 21700, if known
5. connector type or connector photo
6. cable length and polarity
7. charging method
8. expected order quantity
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Fastest way to start Send the existing battery photo, device drawing or battery-compartment dimensions together with the electrical requirements. |
Why is a 7.4V battery called 7.4V?
It is typically a 2S lithium-ion configuration with two NCM cells connected in series.
Which cell formats are commonly used?
18650 and 21700 are the main cylindrical cell routes for this category.
Can capacity and connector be customized?
Yes. Capacity, cell arrangement, connector, cable length, polarity and pack structure can be reviewed around the device.
Can samples be made before bulk production?
Yes. Prototype samples can be prepared for fit and performance evaluation before final production approval.
Is 7.4V 2600mAh the only available model?
No. It is a representative configuration. Other capacities, cell layouts and connectors can be developed according to the project.
