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Maxicell 4000 21700

Rechargeable Accu 21700 Maxi Cell Battery - High Performance and High Drain

The Battery Accu 21700 Maxi Cell is a benchmark in high-performance cells, being the ideal choice for those seeking the perfect balance between a massive capacity and a efficient discharge current. Designed to meet the demands of high-performance electronic equipment, this cell offers a consistent and safe power delivery for all types of regulated devices. Upgrade your equipment with a reliable and long-lasting battery.

Features:

  • Brand: MaxiCell
  • Capacity: 4000mAh, ensuring superior autonomy and long periods of use between charges.
  • Continuous Discharge Current: 20A (60W), providing a stable and steady power flow for everyday use.
  • Pulse Discharge Current: 45A (100W), ideal for brief peak demands with maximum efficiency.
  • Lifecycle: More than 300 complete charge/discharge cycles maintaining a high performance standard.
  • Maximum Charge Current: 4A, enabling efficient charging when paired with suitable chargers.
  • Type: 21700, compatible with the new generation of Mods and devices that support this format.
  • Lithium-Ion Technology: Advanced high-energy-density chemistry that optimizes cell durability and minimizes heating during normal use.

Product Benefits:

  • High Battery Life: A high capacity of 4000mAh with continuous power delivery up to 60W, ideal for prolonged use without interruptions.
  • Cost Savings and Sustainability: Supports over 300 life cycles, reducing costs and preventing waste associated with disposable batteries.
  • Versatile Compatibility: Perfect for devices that support the 21700 standard, including advanced Mods, high-power tactical flashlights, and portable power tools.
  • Everyday Convenience: A design focused on maximum energy density and fast response in bursts up to 100W.

Safety and Care:

  • CRITICAL SAFETY NOTICE (Lithium Batteries): Industrial lithium cells store a massive amount of energy. NUNCA Do not transport or store loose batteries in luggage, backpacks, or pockets with keys, coins, or any metal objects. Direct contact closes the electrical circuit, causing immediate short circuits with a high risk of explosion or fire. Always use appropriate protective cases or sleeves and insulating spacers.
  • Inspect Before Use: Visually inspect the cell on a regular basis. If you notice deformations in the structure, dents, or tears in the outer plastic insulating film (wrap), stop using immediately. Find replacement cases and accessories directly on our site.
  • Team Management: In devices that require more than one battery, always use strictly identical cells ("bonded") in terms of brand, model, capacity, and life cycles.
  • Technical Limits: Operate your equipment within the recommended margins and never exceed continuous discharge limits of 20A (60W) or burst limits of 45A (100W).
  • Safe Charging: Charge cycles on non-flammable surfaces and under supervision. It is highly recommended to use a proper battery charger external and external to preserve the chemical health of the cell (maximum discharge limit: 4A).
  • Ecological Disposal: When the end of life is reached, never dispose of the battery in regular trash. Take it to recycling at an authorized electronics waste collection point or pile.

Instructions for Use:

  • Initial Calibration: Before the first practical usage cycle, perform a full charge of the battery in a dedicated external charger to optimize its lifespan.
  • Respect Polarity: When inserting the cell into the electronic device compartment, carefully verify the correct orientation of the positive and negative poles (+ and -).
  • Prevention of Deep Discharges: Begin charging the battery as soon as you notice a substantial drop in performance or when the level indicates about 20-30%, prolonging the internal chemistry's durability.
  • Safe Storage: If you do not plan to use the batteries for an extended period, store them with about half a charge in a dry, cool place completely insulated from direct heat sources.
  • Contact Hygiene: Regularly clean the battery's flat terminals and the device's contact pins to prevent electrical faults or loss of conductivity.

Usage Tips:

  • When traveling or moving, always remove the cells from inside the devices and transport them safely and individually in an appropriate carrying case to protect against impacts.
  • If you detect any sign of operational anomaly (such as extreme heating, unusual odors, or liquid leaks), suspend use immediately and contact our technical support.
  • Handling high-drain cells requires knowledge, care, and strict safety vigilance. For a comprehensive understanding responsible way for a protected experience, see FAQ (Frequently Asked Questions) by Contraste Vaping® available here.

We are committed to providing you with the best possible experience! Your satisfaction is our priority!

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