I have two 85A batteries linked together (in effect 170A) and it works well. I do charge every day but the charge time is certainly not excessive. They are always fully charged by the morning, if I check van before I go to bed they are often charged by then.
By charging every day, you are basically just putting back what you took out of the battery that day.
If those batteries are low on charge, then you need something bigger. Numax quote a 10amp for up to 135amp and a 20amp for anything bigger.
The slower you recharge a leisure battery within reason, the better for the battery. Numax suggest a maximum charge rate not exceeding 10% of the batteries' capacity. I'm not sure how you would charge a 20 amp battery, as the 10% rule flies out of the window.
Many years ago, my son put a 10 starter battery charger on his motorbike battery, and it destroyed it, according to him.
Running an electric hose reel does put an extra burden on the battery. If you clean 15 houses a day and fully rewind your hose reel 15 times, then expect to draw between 8 and 10 amps a day. The main impact an electric hose reel has on the leisure battery is that spike of high amperage current the battery undergoes when the electric motor initially starts up. It's like a direct short. Leisure batteries don't do well with that.
I have always recommended a good quality combo battery. It's a good in-between battery as it can be used as a leisure battery and also a starter battery. It was designed around the caravan motor movers market. But these batteries aren't good starter batteries and aren't good leisure batteries either. Generally, if looked after, you can expect 3+ years from them, period.
