The main types of rechargeable batteries are lead-acid batteries, polymer lithium batteries, lithium iron phosphate batteries, nickel-metal hydride batteries, and steel-shell cylindrical lithium-ion batteries. These are the rechargeable batteries that we use for commercial use in our lives.
Lead-acid batteries
Each of these rechargeable batteries has many kinds of batteries. For example, Grepow Battery produces three kinds of rechargeable batteries: polymer lithium battery, lithium iron phosphate battery, and nickel-metal hydride battery. Because each type of rechargeable battery has its own advantages and disadvantages and what kind of fields and products are suitable for use, different types of batteries cannot be compared in general and which one is better.
For example, let's take the led flashlight in the lighting field as an example, and the usage is under our normal temperature conditions.
There are two types of rechargeable batteries used in this field: cylindrical lithium-ion batteries and nickel-metal hydride batteries. Because these two types have their own characteristics, they can be used for simple comparison.
Let's talk about nickel-metal hydride batteries
There are many domestic manufacturers of nickel-metal hydride batteries, and the nickel-metal hydride batteries produced by the main top-ranked Chinese Grepow batteries are still good. In terms of temperature, the charge-discharge efficiency in a high-temperature environment of 70°C can reach 85% at 0.3C. -40 ℃ environment charge and discharge efficiency 0.2C can reach 80%.
NiMH batteries
For example, nickel-metal hydride batteries used in LED lighting have strict technical requirements in addition to some special industries such as coal mines. Most of the nickel-metal hydride batteries used in the lighting field on the market have many brands, and their prices also have certain differences. These differences are mainly due to the difference in the capacity and process quality of NiMH batteries.
To measure which brand of NiMH battery is better, the following aspects are mainly considered, one is whether the battery capacity has a false standard, the other is the service life of the battery, the other is the size and consistency of the internal resistance of the battery, and the last one is the range of operating conditions size.
If the capacity is false, the battery life will not be long enough, that is, the lighting time is not long after each charge, and the number of cycles of the battery used in a certain period of time will be more than that of a battery with sufficient capacity, which is reflected in the service life. It will be shorter; if the internal resistance is large, it will also consume power internally, causing the battery to run out of power faster, and the life will naturally be shorter; of course, the wider the range of working conditions for the Ni-MH battery, the longer the life, and vice versa. shorter.
Cylindrical lithium-ion batteries have similar quality considerations to nickel-metal hydride batteries. Although its energy density is relatively high and its service life is relatively longer, its manufacturing cost will be higher, so the price will be higher. Therefore, the batteries used in LED lighting on the market are mainly nickel-metal hydride batteries.
18650 lithium battery
Therefore, which brand of rechargeable battery is better, more factors need to be considered, rather than simply saying that a certain brand of the rechargeable battery must be good.
MANLY Battery has 12+ years of experience, provides customers with a tailored battery module to meet different applications requirements, if you are interested in our lithium batteries, contact us at sales@manlybatteries.com.
