https://www.airheads.org/community/my-airhead-needs-help/charging-problem-on-an-81-r100rs/ Airheads Beemer Club Discussion Board en-US Thu, 05 Mar 2026 10:29:38 +0000 wpForo 60 https://www.airheads.org/community/my-airhead-needs-help/charging-problem-on-an-81-r100rs/#post-10571 Wed, 11 Sep 2019 08:14:36 +0000 Scot gave an excellent response. • I can only add that the OEM voltage regulator is full of relays and contacts that are set to open and close at certain limits. Just like points ignition, those contacts needs cleaning and renewing every decade or so. That's the number one reason to find one of the newer, 3rd party voltage regulators which are all electronic. Those newer type do the switching in transistor logic rather than with mechanical springs, arms, and contacts. The increase in reliability should be blatantly obvious to even the staunchest Luddite among us. • Then let me underscore Scot's point about newer sealed batteries (AGMs) needing a slightly higher charge voltage. With Rick's adjustable model you can dial the voltage right to the battery maker's voltage specs. Another big plus.]]> My Airhead Needs Help Richard W https://www.airheads.org/community/my-airhead-needs-help/charging-problem-on-an-81-r100rs/#post-10571 https://www.airheads.org/community/my-airhead-needs-help/charging-problem-on-an-81-r100rs/#post-6230 Tue, 10 Sep 2019 01:46:14 +0000 My Airhead Needs Help Samuel Creasman https://www.airheads.org/community/my-airhead-needs-help/charging-problem-on-an-81-r100rs/#post-6230