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imported post
This may open up a can of worms but what the hell.
When I bought my DRZ I was very aware about the bikes reputation for eating batteries. I tried to treat it well over it's first winter. Despite my efforts it was kaput in the spring. The bike, bought new at a local dealer, was still under warranty so I explained my situation.The dealeragreed to replace my battery at no charge on the condition that I purchase a charger from him and follow his recommended proceedure for winter battery care. The charger is a Yuasa brand and I think was less than fifty bucks.
So:
Remove battery from bike, clean it,(as required based on batt type fill cells to appropriat level with distilled water)store in a warm dry place. Note: adding distilled water was not necessary part of proceedure for DRZ
Once a month hook up battery to charger and charge until it goes green or float, REMOVE FROM CHARGER . ( I put a sticky note on the battery and write the date of last charge because I will forget)
Repeat monthly proceedure until winter is over.
reinstall and ride.
I don't claim to be a battery expert. All I know is this proceedure works. I never replaced my battery again despite many seasons of hard use.
Dealers perspective to justify above proceedure:
YUASA charger is a quality product made by or possiably for, the company that supplies quality OEM batteries. Cheepo one's don't necessarily do as good a job.
Battery tenders (battery left hooked up on float all winter) often cook or kill batteries.
I certainly have read a lot of dead battery stories after being hooked up to Tenders . Dealer says in spring guys come into his shop(scratching their heads) all the time and wonder how theirpampered /tendered batteries left onfloat charge all winterhave gone south. This dealer does not carrythe Tenderbrand in his store nor does he recommend leaving a motorcycle battery on float all winter. No matter what the brand of charger.
It's possiable I got hosed into buying a new charger and he(the dealer) sticks the knife in by goguing guys intospending an extra $50 bucks in spring when they knock onhis door with a dead battery.Even I'm not cynical enough to believe that. I've been dealing withthis guy for many years and trust his word.As stated above I am no battery expert and won't be arguing the merits of battery tenders here.
All I know is the above stated proceedure has worked well for me over many winters.
Paul N.
