Do Alternators Charge Batteries. When the alternator is charging the house lithium batteries the big risk is that the alternator can overheat. The alternator is not a battery charger.

If fossil-fueled cars have alternators to charge their battery why dont electric cars just do the same. It has Higher charging rates which can cause the premature wear of the alternator. I start with the assumption that the alternator is working correctly and that the battery is not defective.
An automotive alternator is a type of generator which creates Alternating Current AC.
Alternators are obviously not that smart and thus do not get as optimal a charge in terms of the materials and electrochemistry. For simplicity I assume 100 efficiency in all systems and that the stated abilities of the battery and alternator are also 100 correct. You can use your regular battery charger on AGM or gel cell batteries. If your vehicle has to take a low electrical load light radio AC other gadgets your car alternator can charge the battery when the engine is idle.

