ah is the unit of relative battery capacity, which is the product of the battery output current and the (theoretical) discharge time.
For example, 26ah means that when 1A is output, it can work for 26 hours at 2A, 26ah÷2A=13 hours, and so on....
However . , this relative capacity The device can only measure batteries with the same voltage. If you want to compare batteries with different voltages, use relative capacity × battery voltage. For example, for a 12v26ah battery, the theory is 12*26=312wh=0.315. capacity in kilowatt hours.
If your two batteries have the same voltage, the capacity of the latter is obviously 160% of the former, which means that under the same working conditions, it can provide 60% of operating time. additional use.
Differences
1. In terms of charging and discharging.
Lithium batteries do not have a memory effect; beats herterie can be charged and discharged at any time, battery self-discharge is small, monthly self-discharge is less than 1%, battery can be stored for a long time; the power is strong, it can be charged and discharged quickly, and it can be discharged in 20 minutes. When charged more than 80%, the battery can be completely discharged in 15 minutes.
The battery has a memory effect and cannot be charged or discharged at any time; it has significant self-discharge and the battery is easily discarded if left for a period of time; small and it cannot be discharged with high current for a long time.
2. Temperature tolerance.
Common operating temperatures of lithium batteries are -20 to 60 degrees Celsius, but generally when the temperature is below 0 degrees Celsius, the performance of the lithium battery decreases and the cdischarge capacity decreases accordingly. , the working temperature of lithium battery at full performance, generally, it is 0 ~ 40 ℃. Lithium battery temperatures required by particular environments vary, and some can even operate normally in environments hundreds of degrees Celsius. The operating temperature of the battery should generally be between 20°C and 25°C. When it is below 15°C, its discharge capacity decreases. For every 1°C drop in temperature, its capacity decreases by 1%. If the temperature is too high (above 30°C), its lifespan will be considerably shortened.
3. Formatting Differences
Polymer batteries can be thin, in any area and in any shape, because the electrolyte can be solid or colloidal rather than liquid. require a sturdy case as secondary packaging for contentsr the electrolyte. Therefore, it also adds weight to the lithium battery.
4. In terms of safety
Most current polymer batteries are soft batteries, which use aluminum-plastic film as the outer casing when organic electrolytes are used inside. They will not explode even if the liquid is very hot, because the aluminum-plastic film polymer battery adopts solid or colloidal state without leaking and only breaks naturally. But nothing is absolute. If the instantaneous current is large enough and a short circuit occurs, it is not impossible for the battery to ignite or spontaneously burst. This is the reason why most security accidents happen on cell phones and tablets.
5. Different characteristics.
Lithium-ion batteries are characterized by their lightness and ease of transport. They use transferlithium ions to complete charging and discharging. They generally use doped lithium metal oxides as electrodes. It can be charged Electricity, many mobile phone and computer batteries are generally lithium-ion batteries. This type of battery should be kept away from heat sources, avoid direct sunlight, and should be charged properly but not completely, which can greatly improve the battery's durability. Lithium polymer batteries are characterized by high energy density, their ability to be ultra-thin and the material they contain is solid or colloidal solid. When the battery is damaged, liquid will not leak. Additionally, it is highly moldable and can adapt to different design needs. Under the same circumstances, the performance of lithium polymer batteries is 10% higher than that of lithium ion batteries, but the cost ofrelative production is also higher.
Reference materials:
Baidu Encyclopedia – Lithium Battery
Baidu Encyclopedia – Storage Battery