BUTTON Top 15A 3000mAh 18650 Battery (INR18650-30Q inside)

This battery is manufactured under the Liion Wholesale brand and uses as its main component a genuine 30Q mAh battery cell from a Korean household name cell manufacturer.  This is an amazing cell, extremely low internal resistance similar to the 25R but with a higher capacity of 3 Ah. As always with Liion Wholesale, you can be confident we only use grade A cells in our manufacture.

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The cell is made as a flat top from the cell manufacturer.  Then we put on a high quality low resistance button top and wrap in a secondary layer of protective PVC.  Please note that this battery lacks PCB protection and therefore IS NOT an approved application by the cell manufacturer, so use at your own risk.  These cells can be very dangerous if misused and are only for advanced users who understand how to use and store unprotected cells safely.

These batteries were designed specifically as Thorfire Q8 batteries, but would also work great in any high discharge lighting situation or other application that needs button tops and high discharge.

These are BUTTON TOP batteries and WILL NOT WORK where flat tops are required (Don't know which kind of batteries you need? Please Contact Us before ordering.)

Specifications: 

• Style:  Button Top
• Size:
• Approximate Dimensions:  18.65mm x 67.3mm (to tip of button top)
• Rated capacity:  mAh
• Max discharge current:  15A
• Voltage:  3.7V
• Protected:  NO
• Color:  Pink/black
• Country of Origin:  China

As always, you can trust Liion Wholesale to have tested random samples from each and every batch to make sure all the batteries are fresh and genuine.  Whenever possible, we buy direct from the manufacturer - and we still test our shipments to guarantee authentic, consistent performance. You won't get that with most suppliers.

Battery Warning

Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. Learn more about proper storage and care for rechargeable batteries here. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.

Here are a few tips:

• Never completely discharge batteries (usually below 2.5V for li-ion or 2.0V for LiFePO4, check datasheet)
• Charge fully (usually to 4.2V for lithium ion or 3.6V for LiFePO4) before first use
• Never charge batteries to more than their full charge voltage
• Do not charge unattended
• Do not store your li-ion batteries fully charged for an extended period of time (weeks or more)
• If you must store your battery for a long time, only store in a case or individual box in a cool and dry place at approximately 3.5-3.7V for li-ion or 3.2V for LiFePO4
• Use only high quality battery chargers
• Do not expose to heat
• Do not connect the positive contact to the negative contact without an appropriate load
• Never exceed the battery's specifications
• Never try to charge or discharge li-ion batteries with battery chargers that are not made for li-ion batteries
• Always charge these batteries on and within fireproof material
• Never leave rechargeable batteries in a recharging station unattended
• Do not use any rechargeable battery or charger if any visible damage is present, or if known mishandling, accidental or otherwise, has occurred
• Always store and transport rechargeable cells in a safe, non-conductive container (never keep a spare battery loose in a pocket, purse, etc. and always use protective cases)
• Properly dispose of all battery cells and chargers in accordance with local laws and mandates (if you're unsure, contact your local municipality)
• If a rechargeable battery overheats, hisses, or bulges, immediately quarantine the battery from any combustible materials - ideally, take the battery outside
• If a rechargeable battery catches fire, the FAA recommends pouring water or soda on the battery and surrounding areas - ideally, use a foam extinguisher to quell the fire

By purchasing this product, you agree that seller makes no warranties whatsoever with respect to the goods sold on this website, including any (a) warranty of merchantability or (b) warranty of fitness for a particular purpose, whether express or implied by law, course of dealing, course of performance, usage of trade or otherwise. Buyer acknolwledges that it has not relied upon any representation or warranty made by seller, or any other person on the seller's behalf. If purchasing for resale, buyer assumes all responsibility and agrees to forward all notifications and warnings to the purchaser.

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Shape

Thin, flat sheets of metals comprising the anodes and cathodes of the cell are stacked one on the other, and rolled very tightly together like a jelly-roll. Lithium ions move between these layers, in one direction when the battery is charging, and in the opposite direction when it is discharging.  The tight roll of anodes and cathodes is then jammed into a hard steel cylinder with an open top, and finally capped with the positive pole and sealed. Lithium polymer, or li-po cells on the other hand can be different shapes and are soft and shapeable.

Size

The (18mm by 65mm) battery is a size classification of lithium-ion batteries. If you have ever held one in your hand, you probably noticed it is the same shape, but a bit larger than a AA battery. AA batteries by comparison are sometimes called batteries, because they have a 14mm diameter and 50mm height. Cylindrical lithium-ion batteries all follow the same nomenclature, their name being determined by their size (diameter, followed by height). 

Specifications

The two most important specs for cells are capacity measured in mAh (milliamp hours) and maximum continuous discharge measured in A (amperes). When selecting a battery type you must favor one over the other. High-capacity batteries have a low max. continuous discharge and high-amp batteries have a low capacity. Typical highest-capacity batteries in are ~mAh, and highest-amp batteries are 30A.

Counterfeits

Counterfeit cells are a growing problem, especially prevalent are those from Mainland China and Malaysia where the methods and markets for fake batteries have matured. These batteries often are dangerous and marked with exaggerated specifications. Many used batteries are rewrapped as new and white-labeled. Anti-counterfeiting measures like quality control, and supply-chain inspections are very important for retailers or manufacturers to ensure safety for end-users.

Economy

Over 40% of the world’s batteries are lithium-ion. The battery is one of the most widely produced lithium-ion battery types as it is found in laptops, power-tools, robots, electric vehicles, vaporizers, solar grids, and almost any application you can think of that desires to store electrical energy more efficiently. The cost to manufacture an has dropped from $10 for ~mAh (twenty years ago) to $2 for ~ mAh (today). As cost per kilowatt hour continues to drop, new applications are able to use the technology - fueling demand and economies of scale.

Packs

When talking specifically about lithium-ion battery packs, it’s important depending on industry to distinguish between a cell and a battery. A cell becomes a loose, individual without protection. A battery is then defined as the larger whole: a battery pack composed of many cells with a central PCB (protective circuit) like a BMS (battery management system). Nearly all cells are sold for assembly into a battery or battery pack. The battery’s protective circuitry has important functions like overcharge protection and load balancing.

Safety

Lithium-ion battery chemistry is getting safer every year. Cells are now very sturdy and most people never have problems. However in some circumstances cells malfunction due to mishandling, for example from short-circuiting or puncture. There have also been aircraft crashes because of lithium-ion thermal runaway events (probably initiated by the changes in pressure) - so shipping batteries by air is getting more difficult.

Voltage

cells are usually rated at 3.6, 3.7, and sometimes 3.65 volts. These ratings are all essentially the same. It is the average voltage during a complete discharge. The complete voltage range for most s is between 2.5 volts and 4.2 volts. Many people avoid going below 3 volts. Going above or below this range when charging or discharging can result in heat generation, smoke, fire, or explosion.

Improvement

An 8% improvement to li-ion battery capacity is seen year after year. Compounded, this is slow albeit exponential growth. Within each battery chemistry, improvement is linear. Therefor it takes new generations of batteries with new chemical paradigms (they can all be lithium-ion, with different chemical balances) to allow exponential growth. This growth is expected to continue for at least 25 years, where a physical limit to the amount of energy we can put in a material (~1 eV per atom) may be reached.

Shipping

Shipping lithium-ion batteries is notoriously difficult, as they are classified as the number one most dangerous good in the world due to their explosive nature on-board airplanes. Packaging and customs regulations are very strict and care has to be made to keep up-to-date with rule changes in multiple countries. Custom battery packs need special UN licensing that costs tens of thousands of dollars to be allowed onboard freight aircraft. Shipping by sea is significantly less regulated but nonetheless still has its challenges and drawbacks.

If you want to learn more, please visit our website INR Energy Storage Lithium Batteries.