OK, it's time to replace the lead -acid batteries. Due to a lot of use and age, they discharge quickly and I'm afraid to take it out farther than I am comfortable walking back.
A new set of decent lead-acid batteries costs almost the as much as a good lithium that should have as much or more range per charge, never need watering and should last at least 5 years, more likely 10. And lithium batteries are much lighter than lead-acid batteries. There are other advantages as well.
The trick is to find a battery or batteries that can supply the needed amount of current(amps) to properly run the ev. I'm looking to get a single 48v battery for my Polaris Ranger EV, there are also 12v batteries that can be string in series like the originals, I prefer the simplicity of a single battery. The trick is to find a battery that can supply the continuous and surge amperage draw of the EV.
DO YOUR RESEARCH before buying.
I've read on some other forums that the Ranger EV takes around 180A cruising and up to 480A at full power. Does anyone here know the actual numbers? Meanwhile, the battery I chose can meet those demands.
I haven't yet bought nor used this battery, I'll add to the forum what my results are after installing it.
-edited to fix typos