Hi @sitiakab
There are three batteries that are compatible with the laptop.
Search online for any of the following Lenovo part numbers for the battery to find suppliers that suit you best.
5B10X63141, 5B10X63136 and 5B10X63138.
The part number (FRU number - Field Replacement Unit) should be on the left hand side of the battery in the laptop, if you wish to verify what the number is.
Here's the Lenovo parts list for your exact model also if you wish to verify. Click on Select Commodity > Rechargeable Batteries, Internal (3)
Here's the hardware maintenance manual for the laptop.
Go to p.29 (35 of 56 pdf) to view the procedure to remove the battery from the laptop.
Here's the ifixit Lenovo IdeaPad Flex 5 Chromebook Battery Replacement guide, that may also help.
FYI ifixit does have the battery in stock. See image below
Note the FRU number listed by ifixit is the same as the 1st one listed above. Your laptop MT (Machine Type) number is 82M7 (see parts list). This number can be found on the product information label on the bottom of the laptop.
(click on image)
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jayeff - thanks for all of the great info
crwdns2934271:0crwdnd2934271:0 Alan Bakaitis crwdne2934271:0