The most widely used rechargeable battery type for consumer electronics is Lithium-ion (Li-ion) batteries. These batteries can be used in a wide range of products, including mobile phones and cars. They also have superior qualities to other rechargeable batteries.

Many manufacturers high-quality Li-ion (Li-ion) batteries in all of their rechargeable flashlights and searchlights. This allows us to offer the durable, high-performance products that our customers expect.

We’ve listed the top advantages of lithium-ion batteries from customers’ perspectives and explored the science behind each one.


The toxic heavy metals in lithium-ion batteries are much lower than those found in lead-acid or nickel-cadmium batteries (NiCd). While mercury, lead, and Cadmium have been a staple of battery technology for many years, prolonged exposure to these metals and insufficient disposal can be harmful to people, animals, or plants. Although lithium-ion batteries are safer than many other types of batteries, they still need to be properly recycled. And here on Eco Tree Lithium, we have many environmentally friendly solutions to your vehicle energy source problems

Lightweight, compact

The lithium-ion battery electrodes, which are made up of lithium and carbon, can be carried around in their own weight. This makes them lighter and more compact than older lead-acid batteries. A typical 51Ah (= ampere-hour) lithium-ion battery is about the same weight as a 24Ah lead-acid battery (about 6-8kg) but has twice the capacity.

This is a very useful feature of lithium-ion batteries because we can significantly increase light output and runtime without adding bulk or weight to the pack. ).

High energy density = More punch:

Lithium, a reactive element that can store and release large amounts of energy, allows the li-ion battery to pack high energy in a small package. This means that lithium-ion batteries last longer than other rechargeable batteries while still maintaining a high level of performance.

A typical lithium-ion (= battery) cell has an average voltage of 3.6V. A nickel-metal-hydride (NiMH) cell averages at about 1.2V. This means that three NiMH batteries are needed to match the output from a single lithium-ion battery.

Low maintenance

The older types of rechargeable batteries like nickel-cadmium and nickel-metal-hydride batteries were subject to a “memory effect,” also known to the people as the “lazy battery effect,” which means that if they were partially discharged repeatedly before being charged, the battery would eventually only provide the energy it used before the voltage dropped. This could be avoided by regularly discharging and charging NiCd and NiMH batteries completely.

The memory effect doesn’t affect lithium-ion batteries. This means that they never lose power. You can also recharge them with no maintenance, regardless of whether you have used 100% or 25%.

More charges:

A good quality lithium-ion battery will last for around 1000 charge cycles. The full charge cycle refers to the full discharge of the battery and subsequent recharge to full. This means that you can use your battery up to 75% before plugging it into recharge. After your battery is fully charged, you can still use 75% of what you had left. Only then will your battery have gone through a full charging cycle.

Low self-discharge rate

The self-discharge rate of the lithium-ion batteries is also very low. Self-discharge, a natural and irreversible phenomenon in batteries, is when chemical reactions within the batteries reduce their capacity, even when they are not being used. After charging the battery, the self-discharge rate for lithium-ion batteries is about 5%. Then it drops to 1-2% per year. Nickel-based rechargeable batteries, on the other hand, lose approximately 10-15% of their capacity upon charging and another 10-15% each month.