Li-Ion Batteries
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Li-Ion rechargeable batteries provide reliable and long-lasting electricity.
Industrial lithium-ion (Li-Ion) batteries have radically changed portable power standards, providing 3.7V voltage and massive capacity in standardized formats, such as 18650, 21700, and 26650. The IMR series batteries use advanced High Drain chemistry capable of delivering a high discharge current (up to 28A), which is vital for powerful searchlights and power tools. These cells can withstand more than 800 deep discharge cycles. An additional "Multi-Protection" circuit on selected models prevents the risks of short circuits, overcharging, and deep discharging, which is critical for the safety of lithium elements.
Physical and technical parameters:
- High Drain technology: IMR series supports up to 28A continuous output.
- Multi-Protection: Integrated security chip protects against short circuits.
- High capacity: Modifications range up to 5000mAh for massive loads.
Modern Li-Ion electrochemistry takes portable power to a new level, allowing it to serve highly demanding systems. By inserting these cells into the hardware, your high-power LED Flashlights will work flawlessly even during hours of night work. Safety standards require the use of only certified elements in work technologies. Properly selected components that meet technical specifications significantly extend the operating cycle of the hardware in extreme working conditions. Integrated materials engineering and rigorous quality control during the manufacturing process ensure maximum reliability and safety in all application scenarios. This approach is fundamental to today's demanding industrial and professional needs, where there is no room for error. Efficiency is always a primary requirement for any system.
Q: What is the technical difference between 18650, 21700, and 26650 rechargeable Li-Ion accumulators?
Q: How do Button-Top (raised positive) and Flat-Top (flat) Li-Ion accumulator contacts and protection circuit boards (PCB/PCM) differ?
Q: Why is it recommended to use 21700 accumulators in powerful LED searchlights and e-bike battery packs?
Q: How to properly operate and store Li-Ion accumulators to extend their lifespan to 500+ charge cycles?
Q: What is the storage term and self-discharge rate of 3.7V Li-Ion accumulators prior to recharging?
A: The difference is determined by casing dimensions and capacity: 18650 (18.3 x 65.0 mm, up to ~3000 mAh), 21700 (21.3 x 70.0 mm, up to ~5000 mAh), and 26650 (26.3 x 65.0 mm, up to ~5500 mAh). Larger diameter 21700 and 26650 accumulators provide 50–70% greater energy reserve and higher continuous discharge current.
Q: How do Button-Top (raised positive) and Flat-Top (flat) Li-Ion accumulator contacts and protection circuit boards (PCB/PCM) differ?
A: Flat-Top accumulators lack an additional microchip and have a flat positive top, whereas Button-Top models frequently feature a built-in PCB protection circuit board and raised contact. VIDEX protected Li-Ion accumulators with PCB electronically disconnect the circuit during overcharge, over-discharge (below 2.5V), or short circuit.
Q: Why is it recommended to use 21700 accumulators in powerful LED searchlights and e-bike battery packs?
A: The 21700 format offers the highest energy density to mass ratio (Wh/kg), ensuring sustained 10A–20A current output. This allows searchlights to maintain maximum luminous flux (lumens) without accumulator overheating and thermal throttling.
Q: How to properly operate and store Li-Ion accumulators to extend their lifespan to 500+ charge cycles?
A: Li-Ion cells must not be left completely discharged (below 2.5V) or exposed to direct sunlight above +45°C. For long-term storage, accumulators should be charged to approximately 40–60% of capacity and stored in a dry place at temperatures between 10°C and 20°C.
Q: What is the storage term and self-discharge rate of 3.7V Li-Ion accumulators prior to recharging?
A: The stability of the casing and internal chemistry ensures a 5-year storage resource with regular voltage monitoring. Li-Ion cells feature low self-discharge (around 3–5% per month), so a preventive recharge to 3.8V is recommended once every 6–12 months.
