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You have done nothing wrong. Your difference in voltage is from (line loss) or resistance from the current running through the wires into your hard wired volt meter. The test right at the battery is the most accurate, the one at the mounted meter is a guideline but very close to accurate.
Your driving lights & grip heaters will tax your charging system to the max, use them when you need them like on the highway, turn them off in town or when you are not reving at 3000 rpm steady!
You have done nothing wrong. Your difference in voltage is from (line loss) or resistance from the current running through the wires into your hard wired volt meter. The test right at the battery is the most accurate, the one at the mounted meter is a guideline but very close to accurate.
Your driving lights & grip heaters will tax your charging system to the max, use them when you need them like on the highway, turn them off in town or when you are not reving at 3000 rpm steady!
