Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Battery light comes on below 2000 rpm › Reply To: Battery light comes on below 2000 rpm August 17, 2022 at 8:13 am #998497 EricTheCarGuyKeymaster The only aftermarket alternators I will use for Hondas are Denso. Otherwise, you might have the exact issue you describe. It’s a very common issue apparently.