NS40 or NS60
You can use any brand battery as long as it fits. Anyplace that sells batteries can tell you the correct size.
Any place that sells batteries can tell you the correct size. You can use any brand you wish.
interstate
the Wiimote uses 2 AA batteries, or a rechargable battery pack if you wish to save money in the long run.
petrol and battery power
When you go to buy a battery they can tell you the correct size.
Depends on the size of the engine in the boat.
You can but it is not necessary.
Most use a small 12 volt battery.
The fuse you use is determined by the load on the circuit and the size wiring used in that circuit not the battery voltage.
Any 12 volt battery charger will work just fine.
They use a 1/3N 3 volt battery. AimPoint models which do not use AA batteries also use the same battery.