Adri - the other items to add on for battery life extension are -
1) Don't use a vented Lead Acid battery in a M/C unless you're just flat outta money. Certainly not in a V Rod, EVER.
2) Disconnect the battery when the M/C is in longer term storage or top charge before battery voltage gets low.
3) Remove the battery from the M/C in extreme cold or hot garage storage conditions, take it in the better environment of the house in A/C or Heat & charge once every couple weeks inside. No need for a constant battery tender.
4) Pull the system fuse ( if easily removed ) when the M/C is in short term storage to prevent parasitic drain.
5) If you have a Lithium battery and the M/C is in regular daily service there's no real problem, unless you have a large constant parasitic drain, or the M/C sits for a week or more. In that case have your pigtail to the battery in a convenient place to plug in for 5 minutes while you get ready to ride and check tire pressures, etc. and top charge the battery. This will greatly extend the battery life, and give you a topped off battery at the beginning of every ride.


1) Don't use a vented Lead Acid battery in a M/C unless you're just flat outta money. Certainly not in a V Rod, EVER.
2) Disconnect the battery when the M/C is in longer term storage or top charge before battery voltage gets low.
3) Remove the battery from the M/C in extreme cold or hot garage storage conditions, take it in the better environment of the house in A/C or Heat & charge once every couple weeks inside. No need for a constant battery tender.
4) Pull the system fuse ( if easily removed ) when the M/C is in short term storage to prevent parasitic drain.
5) If you have a Lithium battery and the M/C is in regular daily service there's no real problem, unless you have a large constant parasitic drain, or the M/C sits for a week or more. In that case have your pigtail to the battery in a convenient place to plug in for 5 minutes while you get ready to ride and check tire pressures, etc. and top charge the battery. This will greatly extend the battery life, and give you a topped off battery at the beginning of every ride.