@dimter89, thanks for the insight and feedback. It’s great to hear from someone who understands the issue and has tested the durability of these batteries. Sadly, it sounds like they are prone to failure and will no doubt continue to fail if they battery absorption charge voltage is not corrected with a BYD software update. 
Kings LFP 12V battery testing in the Atto 3
I am currently testing a cheap ($250) Kings 60Ah LFP battery since it was one of the few options I could find that fit within the Atto 3 battery mount. However, you cannot use the standard battery foot clamp, and I’ve yet to fabricate a permanent bracket until I’m happy with the performance (Just using a heavy-duty tie strap at the moment).
The good thing about this battery is the terminals are in the correct position (positive on the left), and the tabs just screw straight to the flat battery lugs without any modification. Just remove the old terminal lugs from the cables and use the bolts that come with the LFP battery.
It’s been working perfectly for a few weeks. The only main concern is whether the 13.8V charge voltage is enough to balance the LFP cells and whether it will reduce the lifespan of the battery over time. The maximum charge voltage listed on the Kings battery is 14.6V.
