How to confirm battery is needed

Looks like the car sat for a long time. What is the year model and miles? This gets you better advice.

Module 11 is really bad. Buy something that gets you new cells if you plan to keep the car for more than a year.

 

How did you "take care of it" ??
If it was just with a charge.......the battery might still be bad.

 

it depends on your circumstances and what you want to accomplish. for long term reliability, new is the only way to go. but you have to consider the other expensive repair possibilities like head gasket and brake actuator.
replacing cells is temporary, and may have to be done often

 

Everyone including Toyota dealers just change the cells. Some sellers give you a used assembly with new or used cells and require a substantial core deposit. Toyota only uses new cells.

Many go for used/reconditioned cells with poor to so so results. Often these last only weeks or months instead of another ten years. This is regardless of their used warranty which may lay up your car for a week everytime until they stop responding.

A couple of fly by nights sell new aftermarket Chinese nickel metal hydrite cells with similar to factory chemistry. Supply chain or pyramid schemes get in their way and they often have customers pay up front and then wait for many months.

Another small operator with better references sells lithium cell upgrades.

New Toyota nickel metal hydrite or after market lithium would be my choice assuming I was not immediately flipping the car. Changing thd cells yourself is advanced diy but requires no core deposit and lowers overall costs.