Li-ion Battery Tips
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21700 Battery Pack Design for Portable Test Equipment
21700 Battery Pack Design for Portable Test Equipment Portable test equipment asks more of a battery than long runtime. A field oscilloscope, data logger, calibrator, cable tester or portable analyzer may combine sensitive analog measurement circuits with processors, displays, communications, ...Read more -
18650 vs 21700 Battery Packs: Cost per Wh for OEMs
18650 vs 21700 Battery Packs: Cost per Wh for OEMs A 21700 cell normally costs more per unit than an 18650 cell, but that does not automatically make a 21700 battery pack more expensive per watt-hour. A larger cell may reach the required energy with fewer cells, welds, holders and assembly ope...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 -
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 -
21700 vs 26650 Battery: Size, Capacity, Discharge Rate and Pack Design Compared
21700 vs 26650 Battery: Size, Capacity, Discharge Rate and Pack Design Compared Choosing between a 21700 and a 26650 battery is not simply a matter of selecting the larger cell. Although the 26650 has a wider cylindrical body, a modern 21700 cell may offer comparable capacity, competitive disc...Read more -
18650 Discharge Current: Low Drain vs High Drain
18650 Discharge Current: Low Drain vs High Drain Choosing an 18650 battery by capacity alone can create two opposite problems: a low-current device may carry unnecessary cost and lose runtime, while a high-current device may suffer voltage drop, overheating, early cutoff, or unstable perform...Read more -
18650 Battery Cycle Life: Causes and Ways to Extend It
18650 Battery Cycle Life: Causes and Ways to Extend It How long do 18650 batteries last? A cycle-count label offers only part of the answer. Real 18650 lifespan depends on chemistry, temperature, charge voltage, depth of discharge, current, storage state of charge, cell matching, pack design...Read more -
21700 Battery for Livestock GPS Trackers: OEM Guide
21700 Battery for Livestock GPS Trackers: OEM Guide A livestock GPS collar may spend most of its time asleep, then wake to acquire a position and transmit data over a 4G Cat-1 network. That combination of low standby consumption and short current pulses makes battery selection more complex ...Read more -
4S2P 18650 Battery Pack Guide: Voltage, Capacity, BMS and Applications
4S2P 18650 Battery Pack Guide: Voltage, Capacity, BMS and Applications A 4S2P 18650 battery pack combines eight cylindrical lithium-ion cells to create a practical balance of system voltage, runtime, current capability, and package size. Yet “4S2P” is only the electrical arrangement. A produc...Read more -
7 Hal yang Harus Diperiksa Sebelum Memesan Paket Baterai Lithium Custom
7 Hal yang Harus Diperiksa Sebelum Memesan Paket Baterai Lithium Custom Paket baterai lithium custom tidak dapat dipesan secara aman hanya dengan menyebutkan tegangan, kapasitas, dan ukuran. Dua paket yang sama-sama bertuliskan 7,4 V 5.000 mAh dapat memiliki kemampuan arus, umur, proteksi, k...Read more -
How to Read a Lithium-Ion Cell Datasheet for OEM Battery Pack Design
OEM Battery Pack Engineering Guide How to Read a Lithium-Ion Cell Datasheet for OEM Design A lithium-ion cell datasheet can tell you whether a cell is a plausible candidate for an OEM battery pack. It cannot, by itself, prove that the finished pack will meet runtime, power, life, safety, and...Read more
