MC2467X early end of charge w/o reaching 4.2V

[pauloschip]

All my devices use LiPo battery chargers of this MC3468X series. For some reason, they are just unable to service batteries with more than 4 Ah. EOC indication reaches MCUs and the charging process stops, usually with less than 3.8 V.

Can anyone help me with this problem?

[pauloschip]

MC34674BEP

[guoweisun]

VRECH is about 4.1V,if your battery is 3.8V the EOC can't be trigger.

Can you try new battery to test?

[pauloschip]

We have been using this charger for many years so far. This never happened before, until we started using batteries larger than 4 Ah. Sometimes the entire process stalls in the trickle charge segment and the battery doesn't even start to charge...

[guoweisun]

Do you monitor your battery voltage when issue happened?

[guoweisun]

Which part do you mentioned above?