My daughter, who lives about fifteen minutes away from me, has a Husqvarna ride-on mower, which is stored in a small shed about fifty metres from a power point. I am the designated mower of her yard. I am trying to find the best way to keep the mower’s battery charged so that it will go when I want it to. Like many ride-on mowers, I suspect, this one is used irregularly, depending on weather. At present, although the battery is under two years old, it was completely flat when I tried to use it yesterday, and I had to use jumper leads from my car - possible, but not convenient. I’m thinking that, pain as it may be, the best bet may be to remove the battery whenever I have just mowed, bring it home, and put it on the charger for next time, and remember to take it with me next time I want to mow. If I bring it home, I can put it on the charger when I want to; if I take it out of the mower but leave it at her place, I will have to leave the charger there, and get her to put the charger on, and I think it’s easier if I do that here. I’m assuming that just leaving a battery in a mower for a few months untouched will not prolong battery life.
Have I missed any easy options here?
If I use the charger, what’s the best charging regime for a normal lead acid battery that is used irregularly? Should I charge it every week for an hour or so? Every month? Only for a few hours before using it?
I have thought about getting a small PV panel and charger, that would charge the battery every sunny day. Would something like that work? (I have an electric gate that operates from a battery charged by a small panel - this battery is now five years old.)
14 Sharp 170W panels with Fronius IG30 inverter
9 REC 235W panels with SMA2000HF inverter
Edwards LX305(2) solar hot water system
pvoutput: Spotted Gums A, Spotted Gums B