Yes
You can replace a battery with a battery of the same voltage but greater capacity as long as it will physically fit.
open it from the side with a thin blade be carfull not to break its fragile replace with a 12v battery about 5 pounds
Yes, you can do this.
No, it does not have enough capacity (i.e. ah rating).
To Reset the security system you disconnect the battery for 5 min then reconnect it. make sure you have your remote or access to the controls because the alarm will sound when the battery is reconnected. when it sounds hit the off button make sure you retighten the battery cables correctly and your good to go. You can also reset the alarm system by disconecting the power to the alarm it's self if you know which wires are for the alarm. There will be one wire that's constant 12v that's the one that should be disconnected, there is also a 12v switched that connects to your ignation wireing . This wire is how the alarm knows when your starting the van or turning it off.
Yes, both batteries perform the same, but the 7ah battery holds more charge.
yes a 5ah battery is a longer working battery than a 4ah so it is actually better than the 4ah
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
The battery is a 12V car battery.
Another 12v of the exact same size.
No, you can not charge a 3V battery with 12V charger.
Anything needing 12V to operate.