Sunday, March 24, 2024

Batteries... the 24 volt system bing replaced by LiFePO4.

 24V EVE 230Ah 5.89kWh LiFePO4 Battery Pack Kit with Smart BMS

https://lifepo4oz.com/

is installed and calibrating.

Step-by-Step Guide: Setting Up Your Daly BMS with LiFePO4 Oz

 

Compression. 

 Some assert the pile should be restrained with threaded Rod or springs .. the kits supplier thinks it is unnecessary.  If it were i would expect to see a spec in the Operating section.  The Compression Spec is in the destructive batch testing section.

The construction of the battery pack will need to be researched. There needs to be some rigidity / compression in the pack because according to some,  failing this the battery packs will swell during charge and this deformation will damage them. 

https://lifepo4oz.com/collections/lifepo4-battery-kits/products/24v-eve-280ah-lifepo4-7-17-kwh-battery-pack-kit-with-smart-bms

Compression Testing Spec  

Ref Page 19

https://batteryfinds.com/wp-content/uploads/2023/09/EVE-LF280K-280Ah-3.2V-LiFePO4-Prismatic-Battery-Cell-SpecificationDatasheet.pdf

Gives the dimensions of a test rig and then specifies the maximum pressure (swelling) the cell should exert to pass the test.  I doesnt seem to refer to the design of a working battery pack.