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How to Properly Charge and Discharge Your 18650 Batteries

18650 batteries, also known as 18mm x 65mm Li-ion rechargeable cells, are some of the most powerful and durable batteries available. They have gained immense popularity in recent years due to their high energy density, lightweight design and low cost when compared to other types of batteries. However, if not used properly they can be dangerous – understanding how to charge them correctly is extremely important for your safety! In this blog post we'll provide you with a comprehensive [...]

18650 Battery FAQ

As with all high-powered batteries, basic safety precautions should always be followed to reduce the risk of fire, electric shock or personal injury. Do not allow the battery terminals to come into contact with metal objects. This can lead to a possible short circuit or fire. Do not subject the battery to strong impacts or shock. If the battery (or device) is dropped onto a hard surface, promptly remove batteries to a fire resistant location and inspect for damage. [...]

The difference between lithium ion and lithium polymer batteries

A lithium-ion polymer (LiPo) battery (also known as Li-poly, lithium-poly, PLiON, and other names) is a rechargeable Li-ion battery with a polymer electrolyte in the liquid electrolyte used in conventional Li-ion batteries. There are a variety of LiPo chemistries available. All use a high conductivity gel polymer as the electrolyte. LiPos provide higher specific energies than other lithium batteries, often used in systems where weight is an important factor, such as mobile devices, drones, and some electric vehicles. This [...]

Advantages and disadvantages of lithium thionyl chloride batteries

Li/SOCl2 batteries are manufactured in a wide variety of sizes and configurations. The capacity from 400mAh cylindrical charcoal and wound electrode structure batteries to 10000Ah square batteries and many others to meet special requirements. The Li/SOCl2 system originally has safety and voltage delay problems. The safety problem was particularly likely to occur at high rate discharge and over discharge. And the voltage delay occurs when the battery continues to be discharged at low temperature after storage at high temperature. Low [...]

Lithium Manganese Dioxide Battery ( Li-MnO2)

Lithium Manganese Dioxide Battery ( Li-MnO2) : metal lithium is used as the anode and manganese dioxide used as the cathode. In the primary battery, the anode is the negative electrode, the electron flows from the negative electrode to the positive electrode, and the current flows from the positive electrode to the negative electrode. In the electrolytic cell, the anode is connected to the positive electrode, and the oxidation reaction occurs on the anode. The anion in the solution. Corresponds [...]

Novel technology aims to improve lithium metal battery life, safety

Rechargeable lithium metal batteries with increased energy density, performance, and safety may be possible with a newly-developed, solid-electrolyte interphase (SEI), according to Penn State researchers. As the demand for higher-energy-density lithium metal batteries increases -- for electric vehicles, smartphones, and drones -- stability of the SEI has been a critical issue halting their advancement because a salt layer on the surface of the battery's lithium electrode insulates it and conducts lithium ions. "This layer is very important and is naturally formed [...]

What Is A Supercapacitor?

A supercapacitor (SC) (also called a supercap, ultracapacitor or Goldcap) is a high-capacity capacitor with capacitance values much higher than other capacitors (but lower voltage limits) that bridge the gap between electrolytic capacitors and rechargeable batteries. They typically store 10 to 100 times more energy per unit volume or mass than electrolytic capacitors, can accept and deliver charge much faster than batteries, and tolerate many more charge and discharge cycles than rechargeable batteries. Super capacitors merged with batteries (hybrid battery) will become the new super battery. Just about everything that is now powered by [...]

What is the shelf life of a NiMH battery?

You probably mean to ask: What is the self discharge rate of a NiMH battery?  The rate of self discharge for any battery depends on the temperature at which it's stored.  Stored at 70 degrees F (20 C) NiMH batteries will lose up to 40% of their charge within a month.  If they are stored at a higher temperature, they will self discharge at an even higher rate.  NiMH batteries stored at a lower temperature self discharge at a [...]

What does mAh stand for?

mAh stands for milli Ampere hour or milli Amp hour.  It is a measure of a battery's energy storage capacity.  If you think of a battery as a small fuel storage tank, which in a sense it is, mAh a measure of how much "fuel" the battery holds.  (This is roughly comparable to using gallons to measure how much fuel a gas tank can hold.  The more gallons of capacity,  the more fuel the tank can hold.) With a [...]

Do NiMH batteries have memory effect?

Technically, NiMH batteries do not have a "memory effect", but strictly speaking neither do NiCds.  However NiMH batteries can experience voltage depletion, also called voltage depression, similar to that of NiCd batteries, but the effect is normally  less noticeable.  To completely eliminate the possibility of NiMH batteries suffering any voltage depletion effect  manufacturers recommend an occasional, complete discharge of NiMH batteries followed by a full recharge. NiMH batteries can also be damaged by overcharge and improper storage (see the [...]