First of all, you need to check whether the IC card heating meter originally uses 3V lithium battery, 3.6V lithium battery, 6V lithium battery or 7.2 V, and determine the voltage. Second, it depends on the battery model. For example: Common models of 3V lithium manganese batteries for IC card heaters: CR123A CR14505 CR17450 CR17505 CR18505 CR26500, etc. ; ER18505M ER26500M, etc. ; if there are two batteries. The battery models packed together are: 6V lithium manganese battery: 2CR14505 2CR17335 2CR17450 2CR17505......... 7.2V lithium sub-battery: 2ER14250M 2ER14335M 2ER14505M 2ER17335 M... Then check whether the Battery has a cable or plug on the wire. If it is a wired battery, use a soldering iron to solder the battery's red positive lead to the circuit board or black wire. the other colored wires are usually the negative of the battery. Change the soldering wire at the terminalnegative. It is better to have a plug, but it must be equipped with a plug with the same spacing as the original model, and the red and black wires must be in the same position, otherwise it will cause a short circuit and will damage the circuit. If your battery only has two wires or the plug is a different model, do you have a soldering iron? There is a way. Finally, you can cut off the old original battery plug, connect the wire cores red to red, black to black and pack them separately. Install the battery, slide the purchase heat meter card, the solenoid valve will open and your heater can be used.
No, the 24 volt voltage is too high and will fry the smart water meter circuit board. Smart card water meters mainly use voltage
Common 3V lithium manganese battery models: CR123A. CR14505 CR17450 CR17505 CR18505 CR26500 etc.; common slot models-3.6V lithium battery for IC card water meters, gas meters, heating meters: ER14250M ER14335M ER14335M ER14505M ER17335M ER18505M ER26500M, etc. ; packed together, the battery models are: 6V lithium manganese battery: 2CR14505 2CR17335 2CR17450 2CR17505 .........7.2V lithium battery: 2ER14250M 2ER14335M 2ER14505M 2ER17335M .........