My original pack on my hustler zeon although new was fried on arrival from the dealer with their leaving it on the charger indefinitely. At the end of last season I replaced one battery with a used US Battery of equivalent size to the 31XHS to get some leaf pickup done but at least one of the remaining Trojans was still very weak. Some maintenance over the winter with an occasional charge, cleaning, quick ride/weed mow I never used it too much. Now I'm on my tenth+ cycle with full water and a full charge I'm getting a max of 10-15 minutes of mowing before it drops because another battery dropping off.
Using a minnkota 440d charger, blades are well sharpened and balanced, connections are all tight, tires inflated and all debris is cleaned off everywhere so I'm thinking of starting off the new year with a new pack. I really need to at least be able to do the front 2/3rd of an acre in one mow as it is rather embarrassing 4+ charges to get just part of my lawn done. My little 24v 20amphr push mower mows a lot more square footage in a charge
The original Trojan 31XHS are
12.97 (329mm) x 6.75 (171mm) x 9.58 (243mm)
Due to the dealer and local support I'm thinking of going to a US XC2 which is
13 1/8 (333mm) x 7 1/16 (179mm) x 11 3/8 (289mm)
The Trojans of similar size being the T1275 however I'm having trouble finding them available locally
12.96 (329mm) x 7.13 (181mm) x 10.71 (272mm)
I'll have to take another look but I don't think it would be too much to move the seat and rear brace up to accommodate the height and I'll have to figure out a way to hold down the batteries since the current metal strap wouldn't work. The wires look long enough so it should be a pretty easy swap? Hopefully get me a lot more range then I have now and a bit more then the stock batteries?