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Battery Pack Quality Inspection Before Bulk Orders
Battery Pack Quality Inspection Before Bulk Orders A battery pack can pass a prototype demonstration and still create expensive problems in volume production. A hand-built sample may use the correct cells, carefully adjusted welds and extra attention from an engineer, while the bulk order depe...Read more -
How to Validate Spot Weld Quality in 18650 and 21700 Battery Packs
How to Validate Spot Weld Quality in 18650 and 21700 Battery Packs A spot weld can look clean and still have insufficient fusion, unstable electrical resistance or poor mechanical strength. It can also be too aggressive, damaging the nickel strip or the cell terminal. For 18650 and 21700 batte...Read more -
LiPo Battery Thickness Tolerance and Swelling Allowance for Enclosure Design
LiPo Battery Thickness Tolerance and Swelling Allowance for Enclosure Design A LiPo pouch cell that fits perfectly in a CAD drawing may become difficult to install in production or place unwanted pressure on a display, PCB, housing or internal component later in its service life. The reason is...Read more -
NiMH Battery Pack Charging Design: Delta-V, Temperature and Timer Control
NiMH Battery Pack Charging Design: Delta-V, Temperature and Timer Control Reliable NiMH battery charging requires more than applying a fixed voltage or running the charger for a preset number of hours. During charging, voltage changes near full charge can be subtle, temperature behavior depend...Read more -
PKCELL 2026 Q4 Exhibition Schedule: Meet Us Worldwide
PKCELL 2026 Q4 Exhibition Schedule: Meet Us Worldwide PKCELL will attend a series of major exhibitions across Asia, Europe and the Middle East in Q4 2026. These events cover electronics, smart devices, energy, medical equipment, lighting and industrial applications. Quick exhibition overview: F...Read more -
Why a Lithium Battery Pack Arrives With No Output: BMS Shipping Mode, Sleep Current & Storage
Why a Lithium Battery Pack Arrives With No Output: BMS Shipping Mode, Sleep Current & Storage A newly delivered lithium battery pack can appear completely dead: the device will not start, and a meter may show little or no voltage at the output connector. That does not always mean the cell...Read more -
Cordless Vacuum Cleaner Battery Pack Design: Cell Selection, Peak Current, Heat and Runtime
Cordless Vacuum Cleaner Battery Pack Design: Cell Selection, Peak Current, Heat and Runtime A cordless vacuum battery must start a demanding motor, sustain high-power cleaning modes and provide useful runtime inside a compact enclosure. Choosing a cell by capacity alone can lead to voltage sag...Read more -
Dashcam Battery Pack Design: Parking Mode & Heat
Dashcam Battery Pack Design Guide: Parking Mode, Heat, Low-Voltage Cutoff & Charging A reliable dashcam battery pack must do more than keep a camera running after the ignition is switched off. It has to support the required parking duration, recharge during realistic journeys, tolerate a ...Read more -
Lithium Polymer Battery Size Chart: Decode LiPo Models
Lithium Polymer Battery Size Chart: Decode LiPo Models Model numbers such as LP402025, LP503035 and LP803860 often contain useful information about a lithium polymer battery’s nominal dimensions. Once you understand the code, you can quickly screen pouch cells for thickness, width and length b...Read more -
Battery Module vs Battery Pack: Key OEM Differences
Battery Module vs Battery Pack: Key OEM Differences The terms battery module and battery pack are often used interchangeably in quotations, drawings and product discussions. For an OEM project, however, the distinction affects system ownership, mechanical integration, BMS design, testing, serv...Read more -
21700 Battery Charger Guide: How to Match Voltage, Current and Cell Configuration
21700 Battery Charger Guide: How to Match Voltage, Current and Cell Configuration Selecting a 21700 battery charger is not simply a matter of finding a charger labeled “for lithium batteries.” The charger must match the cell chemistry, number of cells connected in series, permitted charging cu...Read more -
Nickel Strip vs Copper Busbar for 18650 and 21700 Battery Packs
Nickel Strip vs Copper Busbar for 18650 and 21700 Battery Packs Selecting an 18650 or 21700 cell is only one part of battery pack engineering. The conductor connecting those cells can also limit pack current, increase voltage drop and create unwanted heat. A high-performance cell cannot delive...Read more
