Well, friend, it really depends on the type of battery you have and how quickly you need it charged. Using a 6 amp charger will charge your battery faster, but it may also generate more heat. On the other hand, a 2 amp charger will be slower but gentler on the battery. Just remember to always follow the manufacturer's recommendations for the best results.
Not at all. A 35 amp charger is far too large to charge a lawn mower battery. Use a 10 amp automatic charger.
Yes, you can.
No, a 2 amp battery charger has a higher charging capacity than a 1 amp battery charger. This means the 2 amp charger can charge a battery faster than the 1 amp charger. It's important to use the appropriate charger to avoid damaging the battery.
What is the Solar panel wattage to use charging a 12 volt 45 amp battery.
You can charge a 12 volt battery with a 6 AMP charger. The amount of amps put out by the charger is actually the rate which the power flows out from the charger, not the amount of volts it will charge. Volts and Amps are two different things. You can't charge up a 12 volt battery all the way, using a 6 volt charger. You can charge a 12 volt battery with a 12 volt charger rated at '6 amps'. It will charge the battery faster than a 2 amp charger will, but it will take longer than using a 12 amp charger. You probably don't want to use anything higher than a 12-16 amp charger for charging a 12 volt battery. Some chargers are equipped with a 60amp boost charge that is used for starting the vehicle, without having much of a charge in the battery. You DO NOT want to attempt charging a battery with it set to a 60amp boost charge. That is for starting vehicles only and could damage your battery. Keep in mind that the lower the amps are, that you use to charge the battery (1-2amps), will result in the charge lasting longer without recharging it, than if it was charged up at a higher setting (12-16amps).
Use a low rate charger only, 1 amp or less.
To charge a 12-volt battery, you need somewhat MORE than 12 volt. The 500 ma and the 6 amp are unrelated: battery capacity is often expressed in ampere-HOURS, which is not the same as amperes.
With a 10 amp charge about 1 hour if the battery is totally dead. You should really use an automatic battery charger that shuts off when the battery is fully charged to avoid overcharging.
Remove the battery, or disconnect it, and with any 10 amp/ 2amp, charger, pos to pos, neg. to neg. and charge it at 2 amp, till it is full. If you need to add water, add only distilled water to top the battery up. Use a charger with auto-shut off.
Yes, you can even charge it on the vehicle. Make sure you charge it slowly and either use an automatic shutoff charger or pay close attention the the charge. Do not overcharge. It is best to charge it slowly with a 10 amp or lower charger. Make sure the battery cables are clean and tight.
Yes, you can use a 2 amp charger to charge a 3 amp device, but the charging process may be slower than if you used a 3 amp charger. It's generally safe to use a lower amp charger, but it may not provide optimal charging speed for your device.
Yes, the amp hour rating gives you an idea of the capacity of the battery and charger. The charger and battery need to have the same voltages. i.e. dont try to charge a 6v battery with a 12 v charger. The battery will be charged until it is full.