Lead-acid battery balancing board protective case
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Description
The passive balancing board for electric vehicle lead-acid batteries bought on Pinduoduo came without a case. After three iterations, the hole positions are precise. An additional 4 M4 screws with a length greater than 5 and less than 14 can be used.
Typically, a set of lead-acid batteries is 12V and requires multiple cells in series to increase the voltage. However, there is a downside to series connection: if the voltage of one battery pack is too high or too low, it will affect the entire series battery pack. This will affect battery life over time.
Therefore, I bought a passive balancing board on Pinduoduo. To better fit it into the battery compartment, I designed a case for it. If sealing is required, apply some glue to the gaps after installing the screws.
As shown in the picture: You don't have to buy from this store. Other stores should be pretty much the same. I precisely located the hole positions after three test versions.
It is recommended to use PETG for better resistance and durability than PLA.
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License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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