What is an Battery?
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The battery is a cylindrical, rechargeable lithium-ion (Li-ion) cell, named for its dimensions: 18mm in diameter and 65mm in length. Renowned for its high energy density, long cycle life, and consistent performance, the is one of the most widely used battery formats in modern electronics and energy systems. It serves as the foundation for many high-drain applications, from electric vehicles to industrial equipment.
Chemistry Variants:
batteries come in several Li-ion chemistries, each optimized for specific applications:
Lithium Cobalt Oxide (LiCoO₂ - LCO): Offers high energy density, making it ideal for electronics, though it has lower thermal stability and discharge rates.
Lithium Manganese Oxide (LiMn₂O₄ - LMO): Known for excellent thermal stability and safety, often used in power tools and medical devices.
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO₂ - NMC): Balances energy density, safety, and power output; commonly found in EVs and e-bikes.
Lithium Iron Phosphate (LiFePO₄ - LFP): Delivers outstanding safety and cycle life (+ cycles), though with lower energy density; popular in solar and backup systems.
Voltage:
Nominal voltage is typically 3.6V or 3.7V, with a fully charged voltage of 4.2V and a cutoff (discharged) voltage between 2.5V and 3.0V, depending on chemistry.
Capacity:
Most cells range from mAh to mAh, with high-capacity models used for extended runtimes and lower-capacity cells favored in high-discharge applications.
Discharge Rate (C-Rating):
High-drain s can support continuous discharge rates (CDR) of 10A to 30A or more, essential for demanding devices like power tools and electric vehicles.
Cycle Life:
Depending on usage conditions and cell type, an battery typically supports 300 to over full charge cycles, with premium cells (e.g., LFP) lasting significantly longer.
Protected Batteries: Integrated with a protection circuit module (PCM) that safeguards against overcharging, over-discharging, and short-circuiting. These are slightly longer (~70mm) and are ideal for standalone consumer use.
Unprotected Batteries: Lacking built-in protection, these are intended for use in battery packs with external Battery Management Systems (BMS), such as those in laptops or EVs.
The versatility of batteries makes them a staple across industries:
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Consumer Electronics: Laptops, high-powered flashlights, e-cigarettes, cameras, and power banks.
Electric Vehicles & E-Bikes: Used extensively in modular battery packs; Tesla famously utilizes thousands of cells per vehicle.
Power Tools: Cordless drills, saws, and industrial-grade equipment rely on high-discharge s.
Energy Storage: Integrated into home solar battery banks, UPS systems, and grid-scale storage due to their reliability and scalability.
When selecting an battery, physical features can impact device compatibility:
Button Top vs. Flat Top: Button tops have a raised positive terminal, suitable for certain devices; flat tops are standard in battery packs and tight enclosures.
Protected vs. Unprotected: Protected cells are longer and ideal for consumer devices; unprotected cells require BMS-controlled environments.
Always consult your device’s specifications before choosing an cell. Consider not just size, but also voltage, discharge rating, and protection features to ensure safety, compatibility, and optimal performance.
1 I want to custom battery pack, can you make it?
We are lithium Battery Manufacturer for 7 years,so if you have any request on li-ion battery packs, simply send us an inquiry.
2 How Soon can i get samples, and how much will you charge it, will you refund?
We make samples in about 3-12 days, depending if we have them on stock, no extra markup on samples, and will refund on mass production.
3 What’s your warranty? When does it start?
All of our products have one year limited warranty, start from the shipping date.
4 How shall i proceed with the returns?
please contact our sales representative for a RMA form, we’ll proceed accordingly.
5 What will You Do if we got damaged products when arrive?
We will replace new goods at our cost if the batteries are damaged when arrive, no charges on your side, please contact us for images of damage.
6 How about your lead time, and especially when can i get the goods after i make payment?
Lead Time for samples is about 10 days and bulk order around 12-25 days depending on the order quantity and our order on schedule.
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