In battery manufacturing, there are two specified tests. In the first test, after charging the battery cell according to the specifications of 3.2, a heat-resistant steel needle with a diameter between ϕ5 mm and ϕ8 mm is used. The needle is inserted at a speed of (25±5) mm/s, perpendicular to...
I feel it's necessary to clarify a few points. The company I work for is the battery pack division of a larger corporation. The parent company is involved in the cathode materials. Various subsidiaries under the umbrella of the group have their respective roles. Therefore, I am not directly...
Claiming to be a company manufactured in the United States, it is crucial to verify that their battery assembly does not bear the "Made in China" label.
We have a customs data system that allows us to query the import and export data of our competitors and target customers. While this system is...
We use 3.2V 50Ah cell to make this. It's 3.2V 50Ah, 8 in series to make 25.6V 50Ah. And then 4 of 25.6V 50Ah to make a single box 102.4V 50Ah. Finally you can see in the picture, combine the 5 boxes in series to make the final 512V 50Ah. Sorry for the bad expression. My English wasn't that...
Both automotive batteries and energy storage batteries are classified differently due to their different focuses. Automotive batteries emphasize power density, while energy storage batteries emphasize energy density. Here is the response to your questions:
1. Batteries are typically graded...
For aspects that I'm not familiar with, I simply avoid providing inaccurate information to avoid misleading you. I understand this is a DIY forum, and as stated in my title, I might be able to provide some information you wanna know. My intention is not to sell you products, so I try to avoid...
Even though I work for a lithium battery company, I may not necessarily have complete and accurate knowledge of everything that happens. However, I can share some information based on what I know.
Yes, the decrease in lithium battery prices is also a topic of daily discussion in our office. On...
No we mainly focus on LFP battery cause the mother company is the cathode materials provider. But sodium battery seems to be a new trend? Another guy asking me about the sodium battery before and I did some research. There are some companies working on it and I will share it at here. Information...
Chinese consumers also buy battery cells for assembly, whether out of interest or practicality. However, the number of people doing so is limited. Assembled products are typically used for small devices, such as replacing batteries in solar-powered lights or swapping batteries for electric...
As I mentioned earlier, I work for a subsidiary responsible for battery packs business. Since I don't have direct access to the sales data of the battery cell subsidiary, I cannot accurately ascertain the extent of the decline in demand. However, based on some daily conversations, a decrease in...
Yes, the concerns you mentioned are also worries I face during my everyday shopping. We all hope to pay an equivalent price for products that are worth it. Currently, the majority of our battery cells are being supplied to the Indian market, where distributors and dealers pay different prices...
In a WeChat article, it was mentioned that there are already over 4,000 lithium battery industry enterprises in Shenzhen. If you include some trading companies, lead-acid battery enterprises, and other related businesses, the number could easily exceed tens of thousands, which is not an...
Price is pretty clear now. Especially because of the over production, many company are clearing out their inventory, even at a loss. In that case, their prices are not indicative
Just look at your electricity bill and you will know how large the battery you will need. If you just want a mid range battery, rack battery might be a good option. They are not of good looking but more cost effective. The smallest one in the market together with good looking is 51.2V 50ah...
Cold resistance is a progress. I don't know to what extent sodium batteries can achieve. Last time, when I inquired about the price from a supplier, he told me it's 2 RMB per ampere-hour for the battery pack. However, controlling the size is very challenging. But I think this data cannot be...
Regarding what you mentioned as "Solar Generators," I believe in our industry, they are commonly referred to as "portable power stations." I am aware of such products, but our company hasn't invested much effort in that area. Indeed, these products are composed of batteries and inverters...
Inverter models are limited and highly developed. We don't make them directly. We just provide the design we need and hand it over to experienced inverter manufacturers for production. Because the main business is batteries, there are very few engineers related to inverters. The same goes for...
Normally the battery price should be around 1rmb/wh. for EXW price. EXW price means not shipping cost and other fees included. This is how I would calculate a battery price. eg. 48V 100Ah price would be 51.2*100*1rmb/wh equals to 5120rmb. Then will quote 720USD. The reason for multiply 51.2 is...
The battery price listed in AliExpress is about 0.45rmb/Wh. You shouldn't expect something good from this price. It's only half of the normall price. They're either using second hand cells or making a mistake and waiting you to cancel the order. Using Paypal for the payment is smart
Making two 16s packs is theoretically possible. But balancing is a huge problem.
Regarding how to manage the connections, I think I'm insufficient in this.