First question: how new are your batteries? If they're the ones from last year when you built the board and you've been using them a lot and hard, they are probably worn out.
Did they used to work as long as you need them to? But now don't? THen you just need to replace with new ones the same as what you had that worked.
Before you start looking at batteries, you have to do the math.
How long, exactly, is your run time now?
To get a longer run time, you either have to increase the battery, or cut back the power usage.
Since you don't say anything about how long it actually lasts, we'll make up a scenario:
Let's say right now you ride for 6 minutes and the battery dies.
You said you need 60 minutes (1 hour).
So you need at least 10 times the amount of battery you have now.
If you have 6Ah of battery now, you need at least 60Ah of battery.
60Ah of battery is very large and heavy.
You don't specify what voltage you're running at, so I'll have to assume the 4x2s means you are running 8s, which is 33.6v fully charged, and would be about 30v average.
I'm running a 40Ah 14s battery, and it's heavy enough to just be able to lift it in and out of the trike.
Yours would be a bit more than half the voltage, so even if it was only 40Ah it'd still be very heavy (20lbs or more, at a guess). Needing to be 60Ah means it'd be 30lbs or more.
Now, since you have that much more weight and volume on there, not only is it more mass to accelerate, every time you stop and start it tkaes more power, every time you go up a hill it takes more power, it makes you less aero so the faster you go the more power it takes then, too.
So you'll probably actually need more than 60Ah, maybe 70 or 80Ah, to do 6x the range.
To figure out how mcuh more you *really* need, you'd have to specify your actual power usage in Wh/mile, *and* the actual range you really get out of it now, *and* the actual range you really need out of it, *and* the terrain you are (and will be) riding thru, *and* the speed you are riding at, *and* the weather conditions you ride in now and those you will ride in if they're different.
If you can't increase the battery, then you have to cut the power usage.
Current limit your controller. If you get 6 minutes and you need an hour, then you have to cut current usage by at least a factor of 10. So if you have 200A usage now, you have to limit it to 20A.
Faster you go, the more power it uses. So go a lot slower.
The more often you stop/start, the more power it uses. So don't stop and start as much (not usually possible).
The more hills (even slight slopes) you go up, the more power it uses. So plan differnet routes that don't have any slopes (not usually possible).
The more wind you have to ride against, the more power it uses. So make yourself more aero (wear tight-fitting spandex with no floppy or loose clothing), and ride in aero positions. (not usually possible). Even a little wind takes a lot more power to push against.