Miller says a new two-ton, R-410A system costs $3,500 to $4,500; whereas replacing just the exterior portion of a R-22 system with a dry charge costs around $2,500, plus the cost of the refrigerant. Miller says he currently charges $50 for the first pound and $30 for each additional pound of coolant.
3) Charge the battery for 4 to 24 hours (depending on the size of the battery, bigger batteries with a larger capacity, e.g. Y50-N18L-A2 or YB16Al-A2, will take much longer to charge than smaller batteries e.g. YB4L-B or YB2.5L-C) with a Motorcycle Battery Charger. 4) After charging, disconnect the battery from the charger and leave to settle for 1 hour. 5) Re check the battery acid level (make sure it is up to the upper level mark) and top up the acid levels if required.
What's more, SLAs have different chemistry that responds differently to charging rates. The old way of charging a flooded motorcycle battery was to wire up a trickle charger (say, 1.5 or 2 Amps) for several hours, and then disconnect it when the battery acid started to bubble and boil. Yeah, but doesn't the bike charge the battery? Of course, the battery is recharged when the engine is running. And, after a ride, the battery will be at whatever voltage the bike's voltage regulator has been supplying. The important point here is that if you install a new AGM battery in an old machine that was originally designed for a flooded battery, the charging system could be working perfectly, but never keeping the AGM battery fully charged.