Want this question answered?
There is no safe way to charge a phone without a charger made specifically for that phone/battery
sure. like KINKOO brand's portable charger a very reliable portable charger for phone. you may google it...
yes it is safe
Yes, as long as you do not overcharge it.
There is no safe way to charge ANY battery without a charger rated for that particular battery. You could easily destroy the battery if you try.
It is always better to use a charger designed to charge a particular battery type. Using a NiCad charger for NiMh batteries or vice versa can cause damage to the charger or batteries, especially if the charger is designed to charge the batteries in under two hours. The worst case is a fire risk. Some charger and battery combinations will work perfectly well together but it is safe to assume that the charger will only be suitable for the battery types stated on it.
Not that i can think of where you'd find a charger labeled for a 7.5 V battery, but - No. A charger rated for a higher voltages won't know when to turn off, and if it's also pushing a higher charge current it's likely to overheat the battery.
Most of the mobile phones have batteries of less than 5V rating, mostly up to 3.7V.Chargers are typically rated for less than 5V.Caution: It is not safe to charge these with a 9V charger. The battery may explode..
A: Now that depends on how good the 12v charger is. If it can pump a lot of current out of it that will destroy the battery by heating it, If the charger is current limited then the battery will be safe and so will be the charger. If the charger has no current limiting then the charger will heat up and destroy itself. The whole thing comes up to be a power question who is more powerful battery or charger
No because an ATV battery only can take 2 amps and a car charger pushes out 6 to ten But you can use a float charger there perfectly safe. it depends on your charger. most chargers have several amp settings to choose from. mine has settings for 2, 10, 25, 40, and 200 amps for jump starting. as long as you make sure the volts, 6 or 12, are right it will charge it.
A charger designed for a 12 volt battery should not be used to charge an 8.4V battery. It is likely to damage the battery and in the worst case can cause a fire. There are some chargers that can be used with a variety of battery voltages and chemistries but unless you are certain that the charger is safe and effective on a different battery voltage, assume that it cannot be used.
I think it is safe