Can either side of the lithium iron phosphate battery be placed on the ground?

Introduction Can either side of the lithium iron phosphate battery be placed on the ground? Yes, any side of the lithium iron phosphate battery can be placed on the ground. Normally it can be placed upright, on its side or lying down. to place it on the ground.

Can either side of the lithium iron phosphate battery be placed on the ground?

Yes, any side of the lithium iron phosphate battery can be placed on the ground. Normally, it can be placed vertically, sideways or lying down, and it will hardly affect the use. But try not to put it upside down, which will have a greater impact on the internal electrolyte distribution, preventing some of the electrolyte from seeping between the pole pieces, thereby reducing the service life drums.

How to change the power supply from Santak 192V inverter to lithium iron battery

Most low-speed electric vehicles use 60V power supply and 48V, but we've also seen 64V and 72V Power Supply. Most motors are Hall effect permanent magnet motors, and there are also series excited motors with carbon brushes. There are many power types such as 2KW, 3KW, 4KW, etc. Let's take the example of a 60V3KW motor with Hall to parler of several key points in the selection of a lithium iron phosphate battery.

1. First select the number of channels. As we all know, the rated working voltage of lithium iron phosphate battery is 3.2V. 60V requires 60/3.2 strings, which is about 19 strings. I recommend choosing 20 skewers. Why ? If you assemble the battery yourself, you can arrange it in two rows of 10 and 10 depending on the condition of the battery compartment, or you can arrange it in four rows of 5 and 5 and 5 and 5. Because they are neat and uniform, it is easy to fix and install the battery.

Car battery

2. Once the number of channels is selected, capacity must be considered. To ensure long-term vehicle mileage, it is recommended to select a larger capacity. What size is appropriate? Personally, I think this should be determined based on myscope of activity and economic conditions. If the daily journey is less than 30 km, it must be considered that the battery must be sufficient for a range of 100 km: on the one hand, as the battery capacity increases, the battery discharge rate decreases. This helps extend battery life; on the other hand, the battery capacity will decrease after a few years of use. If you just pick it at the beginning, it will be like Song Dandan's sketch in a few years. years old (when you're young, the front legs are lifted here and the hind legs are lifted here. Now that I'm old, I can't put my shoes on my feet, but I have more energy than I can shake allow it, and I can no longer meet the travel requirements. At that time, the battery will become a child's play for Cao Cao - it is tasteless to eat and a shame to throw it away. , you have to spend money'money. If you don't buy it, you won't be able to meet the requirements.

So I think an investment should be fundamentally in place. Another practical advantage of this method is that the battery utilization rate is high: for example, the original car has a 50 Ah battery. After three years, the capacity drops to 60% of the original, the mileage decreases and it can no longer be used. If you choose a 100AH ​​battery at the beginning, it will still have a capacity of 60AH three years later, and the old one will have a larger capacity than your new one. It will not be a problem to use it for another 3 years.

Car batteries

3. Selection and calculation of battery capacity. First, calculate the operating current under normal working conditions: 3KW/60V=50A. Secondly, you have to consider the mileage: the maximum speed of a 3 kW vehicle is around 60 km/h. If you want to travel 100 km, and taking into account the decrease in battery capacity from year to year and the poor discharge in winter, the capacity. should ensure that the vehicle can travel for at least two hours. 2 hours × 50A = 100AH. In this way, the new battery can theoretically travel 120 kilometers. Even if it decreases by 10%, it will still full meet the 100km requirement.

Car batteries

4. Estimated cost of batteries. At present, the price of genuine lithium iron phosphate battery cells on the market is about 2.5 yuan/AH. Once disassembled, depending on the quality and number of cycles, the price varies from 1.36 to 1.8 yuan/AH. Taking 20 strings of 100AH ​​lithium iron battery as an example, the price of battery cells ranges from 2.5 × 100 × 20 to 1.5x100x20, plus 20 strings of 150A protection plates (about 250-380 yuan), battery lithium 73V30-50A charger (theprice is about one thousand yuan, if you modify it yourself, it will be discussed separately) and auxiliary materials (such as epoxy resin board, heat shrinkable material, welding wire, copper connecting piece , etc.) of about 50 yuan, it's almost the same.

Remove the battery and replace it with a new one.

1. The first thing to do is to calculate the battery capacity.

2. You need to connect individual small capacity lithium-ion batteries in series and parallel and install safety protection components to form a lithium-ion battery.

3. After the lithium-ion battery is assembled, a number of tests must be performed on the lithium-ion battery for safety reasons.

4. After carrying out a number of tests and confirming that the lithium-ion battery has successfully replaced the lead-acid battery, final assembly can be carried out.

5. Reassemble the inverter using the correct method, restore the integrity of its appearance and finally perform an overall inspection. Only after the inspection is completed can the actual replacement be carried out.

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