Compared to 12V batteries... Golf cart batteries in general are designed for the roughest service
. The things that set apart the very tall, Trojan L-16s, from "standard" golf cart batteries are numerous. They were designed for stand behind forklifts and the like, and to be cycled deeply on a daily basis.
They have heavily reinforced cases, rope
handles, thick plates, baffles between the plates, (to prevent early failure from warping leading to shorting), and much deeper sumps in the bottom with more water
on top as well. (The deep sump allows more room for nasty sulfates to accumulate in the bottom over the years, without touching the plates). If you add HydroCaps, they become low maintenance
They are expensive, tall, heavy, and require a custom made STRONG box. If none of these issues are a deal breaker... Trojan L-16s (@ about 380 Ah), will not only last longer on average, but the odds of an early catastrophic failure would be MUCH less, due to their robust design.
My personal experience starting out with with Sams Club golf cart batteries, mirrored that of a couple of friends... They are really cheap
, but if you use them hard, they only last a couple of years. They are SO much cheaper, that it may still be right for you, but you give up reliability
as well as lifespan.
"Trojan" golf cart batteries are much better than the other brands, (@ twice the cost), but only half as good as their L-16 monsters!
A pair of them are, however, just a bit heavier than our small 18 HP diesel
engine! I can walk down the steps with one in my hands... but BARELY! Luckily it is only every 10 years or so...