1000w will drive about 40 amps into a battery and is fine for one or two charging. 2000w will drive about twice and is better suited for three or more batteries. Use the eco switch for quieter operation. Full power is still available. My rule of thumb is 15 to 20 amps per battery is fine. Some others will push 35+ amps to really hurry up the process. Charging should take 2 to 4 hours to hit 90%. The last 10% can take another 4 to 6 hours and is best completed at home.
Post a pic, we will find a way to get you 3+ batteries.
