I can’t remember the original battery I had, but after 5 years or so it needed replacing and this is what I ordered:

BRANDED HIGH POWER:
12V 110AH LEISURE BATTERY HEAVY DUTY LOW HEIGHT (110 AH AMP) 110 AMP DUAL PURP

SPEC:

110AH LEISURE DEEP CYCLE/DUAL PURPOSE/SOLAR

Voltage12 VoltsCapacity (C20)XXAHCapacity (C100)110AHCCA (EN)775ENCCA (SAE)825CCALength mm353Width mm175Height mm
Includes Terminals190
– 100% Brand New
– High Durability
– Suitable for DUAL POWER use: LEISURE/DEEP CYCLE/SOLAR/STARTING
– PREMIUM Extra Heavy Duty Version
– Calcium Technology – Never requires topping up
– MAGIC EYE STATE OF CHARGE INDICATOR
– Fit & Forget – READY TO USE
– Ideal for seasonal use
– SAFER TO USE: can be tilted 90° for short periods
– 4 Year Guarantee (Return to Seller)**

Ebay seller: numberonebatteries