Low Voltage Regulators for Alternators
Low voltage regulators have a max charging voltage of 13.8 V instead of the usual 14.5 V. There are cases, where the lower charge voltage is advisable: e.g. when the battery sits in close proximity of the oil tank, as in Softails, where overheating of the battery has been known, or when a 6 V to 12 V conversion places the 12 V battery inside the oil tank, where overheating of the battery also may be a problem. Also, when using a modern lithium ion battery, the maximum charge voltage is 14.6 V. The stock regulator cut off voltage sits right on this limit. Using a low voltage regulator positively avoids damage to the battery. If you are unsure about which regulator type to choose, contact our service team, they'll be happy to sort you out.