Here is the TS126 battery tester for all Lead-acid and lithium LFP / Life PO4 batteries.
Charge status, result in volts and %.
Allows testing of all lead and acid batteries and lithium LiFEPO4 / LFP.
Easy to use, connect the clamps to the battery and read the result.
The circuit with microprocessor of the Optimate battery tester uses a very low amount of electricity drawn from the battery itself to determine and display the battery status.
The instructions are simple and indicated on the back panel of the tester.