7.4v 2000mah Battery Pack

Voltage is only the start. HSS Energy supplier reviews the 7.4V 2000mAh Battery Pack for OEM orders against the load, charger and available space. The reason is simple: a device can carry a 7.4V label and still have the wrong peak current, cut-off setting or connector. This pack permits a 2A maximum charge current and 6A maximum continuous discharge through the specified 6A BMS. Charge cut-off is limited to 8.4V. Discharge cut-off must stay at or above 5.2V, with 6V recommended.

Compact blue heat-shrink-wrapped pack. Final connector, polarity and lead length are selected against the approved equipment interface.

Key Specifications

1. What 2000mAh Means in the Equipment

Capacity tells only part of the runtime story. This pack is rated at 2000mAh, with 1950mAh as the stated minimum under the standard-charge and 0.2C discharge reference. Calculated nominal energy is approximately 14.8Wh. A 7.4V rechargeable battery pack with a 6A continuous rating therefore needs the equipment's normal current, start-up demand and duty cycle before runtime can be estimated responsibly.

2. Two Cells, One Straightforward Layout

Two 18650 cells are connected in series, with no parallel group. That is the confirmed 2S1P structure: voltage rises to the required level while pack capacity remains 2000mAh. The 2S1P 18650 battery pack uses heat-shrink film rather than a rigid molded housing. That saves space, but it also makes the customers tolerance, wire-exit and insulation-clearance drawing important before enclosure release.

Marketing reference: examples of cylindrical-cell pack arrangements. The image shows a wider product family; this product's 2S1P configuration is confirmed by the supplied specification.

3. The Charger Is Part of the Selection

A 7.4V pack still needs the right 2S charger. Maximum charge current is 2A, while 0.5C charging is recommended, and charging voltage must not exceed 8.4V. On discharge, 5.2V is the stated lower limit and 6V is recommended. For a 7.4V 2Ah lithium battery, these figures should be checked in the sample equipment rather than copied into a design by habit. The BMS is rated at 6A; any individual protection function shown in general marketing material still requires model-level confirmation.

Marketing reference only: the image lists common protection functions. Publish those functions for this model only after the approved BMS specification confirms them.

4. Small Pack, Real Clearance Requirements

At approximately 38 x 20 x 68mm and 0.12kg, the pack is easy to place on paper. The enclosure is where the details appear. The 7.4V 18650 battery pack can be evaluated for portable equipment designed around a 7.4V nominal input, but final fit still depends on tolerance, cable bend radius, connector clearance, retention method and heat around the battery compartment.

5. Lock the Interface Before Repeat Production

JST and DC5521 are listed as options, but a connector name alone is not a finished interface. For a 2S 2000mAh battery pack, the approved drawing should capture the exact part number, mating side, polarity, wire gauge, lead length and strain relief. Once the sample is signed off, that drawing becomes the reference for repeat production instead of relying on a photograph or verbal description.

6. What the Factory Checks Before Shipment

A repeat order should reproduce the approved sample, not merely resemble it. For this pack, the inspection plan should cover cell identity, voltage, capacity, internal resistance, wiring, connector, BMS function and finished appearance. Xiamen HSS Energy Technology Co., Ltd was established in 2023; its core partners bring more than ten years of lithium-battery experience. Development, OEM/ODM work and volume production are supported through multiple production bases in China totaling approximately 12,000 square meters.

Supplied factory photo: cylindrical cells staged in production trays. It supports manufacturing context but does not identify the exact cells used in this product.

FAQ

What configuration and chemistry are confirmed?

The product uses NCM 18650 cells in a confirmed 2S1P arrangement.

What are the capacity and current ratings?

Rated capacity is 2000mAh, minimum rated capacity is 1950mAh and maximum continuous discharge is 6A. Calculated nominal energy is approximately 14.8Wh.

What charger and cut-off values are required?

Maximum charge current is 2A, with 0.5C charging recommended. Charging cut-off must not exceed 8.4V. Discharge cut-off must be no lower than 5.2V, while 6V is recommended.

Does the BMS provide every protection shown in the supplied image?

The specification confirms a 6A BMS but does not list each protection function. Publish individual protection claims only after the approved BMS specification confirms them.

Can the connector be selected for the equipment?

Yes. JST and DC5521 are listed as options, and another connector may be evaluated. Please provide the mating connector, polarity, wire requirement and lead length.

What information is needed for a quotation?

Send the voltage range, normal and peak current, runtime, available battery space, connector and polarity, charger information, quantity, destination and required documents.

Request a Project Quotation

For the 7.4V 2000mAh Battery Pack, send HSS Energy the equipment load, expected runtime, battery-space drawing, connector, charger, destination and quantity. We will review the electrical and mechanical interface and prepare a project-specific sampling specification and quotation.