Can I use this charger - what do the electrical figures mean?!

rileydog

neilwoods wrote: »

Quick question, does the samsung plug actually say 2.5A

Only reason I ask is the travel adapter on Samsung website shows it as 2A

Yep, it doesn't say input or output like the Apple charger, just "2.5A 250V~" this is on the mains plug part, the travel adapter itself says 5V ((solid line on top with three dashes underneath) 2A

wealdroam wrote: »

OP, just plug the two samsung bits together as in your third photograph, and there should never be a need to take them apart.

Then you can use either the samsung charger or the iphone charger to charge your new tablet, and you can also use either charger to charge your iphone.

If you want to buy unbranded, just buy any charger that has a USB socket on it and use the appropriate lead for the device being charged.

I know the bits can be left plugged together, I was just explaining the set up in case it was relevant to the electricity part of the Q, I know nothing about this sort of thing!

Others are suggesting that due to the electrical 'numbers' the iPhone charger isn't powerful enough to charge the Samsung tablet though.

neilwoods

wealdroam wrote: »

OP, just plug the two samsung bits together as in your third photograph, and there should never be a need to take them apart.

Then you can use either the samsung charger or the iphone charger to charge your new tablet, and you can also use either charger to charge your iphone.

If you want to buy unbranded, just buy any charger that has a USB socket on it and use the appropriate lead for the device being charged.

Good luck with that then.

Yes the samsung charger can be used for both devices.

The apple charger will do 1 of 2 things. Simply won't charge as some of the new devices on the market are very funny about the power it requires. Or it will charge and take twice as long and you will probably find the charger gets pretty warm.

And if you were to buy a bog standard one which gives 500ma, then again it will either won't charge or charge and take 4 times as long and getting even warmer.

withabix

Most devices which require 2A @ 5V will come up with a message on the screen telling you that they will not charge, or that you will need to close down your Apps, Bluetooth, WiFi, GPS etc to charge in any reasonable amount of time.

Ectophile

The "~" symbol indicates AC. The line with dashes under indicates DC.

The figures on the plug part indicate the maximum voltage and current that the plug can safely handle: 2.5 amps at 250 volts AC (though the charger won't need anything like 2.5 amps). Provided you are using the plug with the power supply part, you should never need to worry about this.

The figures on the USB part indicate the maximum power it can supply: 5 volts DC at 2 amps. That's 1 amp more than the iPhone charge can supply.

rileydog

Ectophile wrote: »

The "~" symbol indicates AC. The line with dashes under indicates DC.

The figures on the plug part indicate the maximum voltage and current that the plug can safely handle: 2.5 amps at 250 volts AC (though the charger won't need anything like 2.5 amps). Provided you are using the plug with the power supply part, you should never need to worry about this.

The figures on the USB part indicate the maximum power it can supply: 5 volts DC at 2 amps. That's 1 amp more than the iPhone charge can supply.

Thanks, I think I should have paid more attention in physics.. I have no clue what AC means, or DC, or voltage, or current, or amp!

With regards buying a second Samsung type charger which figures do I need to try and 'match' when buying the charger. The two components of the Samsung charger have different figures (mains part "2.5A 250V~" Travel adapter part "5Vsolid line on top with three dashes underneath) 2A"

Thanks, and sorry to be so dim

grizzly1911

rileydog wrote: »

Thanks, I think I should have paid more attention in physics.. I have no clue what AC means, or DC, or voltage, or current, or amp!

With regards buying a second Samsung type charger which figures do I need to try and 'match' when buying the charger. The two components of the Samsung charger have different figures (mains part "2.5A 250V~" Travel adapter part "5Vsolid line on top with three dashes underneath) 2A"

Thanks, and sorry to be so dim

Put specification into ebay.amazon and search.

Something like this?

http://www.ebay.co.uk/itm/GENUINE-SAMSUNG-MAINS-CHARGER-FOR-GALAXY-S2-i9100-S-i9000-S5570-i5800-ACE-S5830-/160664843559?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers&hash=item25685ef527

I don't have a Galaxy BTW - just being pragmatic.

bod1467

All UK mains devices will be rated to 250V (AC). The important part for you is the USB output rating ... this needs to be 5V (DC - solid line on top with three dashes underneath) 2A to be compatible with the Tab2. (It will also still work with the Apple devices).

espresso

grizzly1911 wrote: »

Put specification into ebay.amazon and search.

Something like this?

http://www.ebay.co.uk/itm/GENUINE-SAMSUNG-MAINS-CHARGER-FOR-GALAXY-S2-i9100-S-i9000-S5570-i5800-ACE-S5830-/160664843559?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers&hash=item25685ef527

I don't have a Galaxy BTW - just being pragmatic.

It really does not help the OP when people post a link to totally unsuitable charger!

The charger that you have suggested has the wrong connector (micro USB) and can only supply 5V @ 0.7A when 5V @ 2A is required.

paddyrg

5Vsolid line on top with three dashes underneath) 2A

That's the bit to look for.

Don't be ashamed to not understand all the details of this, I know plenty of people who think they do who don't either.

The voltage a device can supply is for the sake of this discussion a fixed number and must be matched, so you can't use a charger saying 7.2V 2A, it will damage your kit, it must say 5V (and have the lines symbol). The current (the A number) is the maximum the charger CAN supply, so if it says 2A, it can supply 2A IF THE DEVICE CAN USE IT, or in other words as much current as the device itself chooses to take upto 2A. If your charger says 5V 3A, that's great your Samsung will still only draw the 2A it requires. If it says 5V1A, then it isn't capable of supplying the current the Samsung needs. The Samsung may battle on, but it is doing so with only one lung.

grizzly1911

espresso wrote: »

It really does not help the OP when people post a link to totally unsuitable charger!

The charger that you have suggested has the wrong connector (micro USB) and can only supply 5V @ 0.7A when 5V @ 2A is required.

Chill the read the post "Put specification into", the operative word is "like" and I state I haven't got a Galaxy.