There is no safe way to charge a phone without a charger made specifically for that phone/battery
No, a Samsung Galaxy Tab 7.7 charger cannot directly charge an iPod. While both devices use USB connections, the charging specifications and voltages may differ. It's best to use the charger specifically designed for the iPod to ensure safe and effective charging.
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yes it is safe
Yes, as long as you do not overcharge it.
It is not recommended to use a 12 volt charger to charge a 14.4 volt battery as the charger may not provide enough voltage to fully charge the battery. Using the correct voltage charger will ensure efficient and safe charging of the battery.
No, you cannot charge a 28 volt aircraft battery with a 12 volt car charger. The charger voltage needs to match the battery voltage for safe and effective charging. Using a charger with a lower voltage can damage the battery and pose safety risks.
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.
Yes, you can charge a 12V 7.2Ah battery with a 12V 300mA charger, but it may take a long time to fully charge the battery due to the lower current output. The charger will provide a safe voltage for the battery, but the charging time could be significantly extended compared to a charger with a higher current output. Ensure the charger is compatible with the battery chemistry to avoid any damage.
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.
Yes, you can charge a 12-volt battery pack with a 15-volt charger, but it's important to ensure the charger is compatible and properly regulated. A 15-volt charger can provide enough voltage to charge the battery, but it may also risk overcharging, which can damage the battery or reduce its lifespan. Using a charger with a suitable voltage and built-in protection features is recommended for safe charging. Always monitor the charging process to prevent overheating or other issues.