Home he buys a leftover 2009 with the original dry battery not prepped. I call yuasa and ask how the self life is going to turn out with a sitter this old, with/possible seal broken? He says, 'we buy the comp's batteries, run our routine against theirs to see the outcome.' His process was, 'we fill the acid, let it soak in the pleats for an hour at least.' 'We charge the battery, then run it down to 1 or 2v and then recharge it back up>>> 3 times is the charm.' 'This puts the battery in a well charged environment...' is the paraphrasing.
So home he connects a brake light and high beam off the battery and lets it burn down until the battery goes dead. Then home, he asks on the other end, 'watt happens you throw 10 amps at it with a car charger?' The tech comes back and says, 'oh sure, use this, but the trick is not to overcook the plates, so check the case for heat and do not let it get hot for that long with 10a being thrown at it...' was the paraphrase.
Then home he understands to use a 1.5a rated charger at a 14amp hour battery, not connect some 1.2a rated charger at a 14a battery, where the math computes as a 12v-12a battery needs a 1.2a rated charger and charged for [literally] 12 hours is the formula. The trick is not to use a 1.2a rated charger on a 1.4a size battery or you are .2v down on a full charge. Force the 10a at it so it exceeds the bike's mini-charger and that [low] rated output. Check the output number on that charger you have.
So home he buys a 1.5a rated charger, hooks the 10a at it for less than 4 hours or she cooks the pleats to a separation point... how? Boiling the plate and that bubble expands in the fiber and tears it open. Therefore, it's a short charge time so as not to cook the liquid to expand the bubbles larger, but to have the bubbles ooze out like champagne bubbles clung to the glass and those bubble sizes are more like what you are looking for... internally speaking.
When home he measured the battery at 12.4v at the static, not 12.8v, home he took the 10a and cooked more heat at it so the value would exceed 12.6v and be fully charged at a static 12.8v. I had to reach that level or I was no better off with a 1.2a rated charger. After 3 times of bringing the battery down to a dead 1v reading, home he still has the same battery in the bike. So say the bike was built in 2008 sometime, sat on the dealer floor till 2010, home he puts the battery into service per yuasa's way of charging the competition/their batteries... Hello? Can you tell me how to charge a new battery to last longer than a year?
Home he bets no battery is prepped at this level, then handed to you over the counter; is fat chance... hello?
Signed,
NOLTY (no one listens to yuasa)
P.S.
Stuputt home he forgot to turn off the remote toggle of the AFR meter. Next day he turns the key on and oh look, a dead battery! Home he then charges the battery with his 1.5a charger, [was prepped the same yuasa's pre-service = 3-times], but this time was charged once for this event. This 2012 year battery came back up to a full charge as if nothing happened... I rest my [battery] case.