Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
03-16-2007, 08:49 AM
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Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
..........Adapter question... The Hi-Tec Transmitter that came with my Easy Star RTF is a hassle to access to add batteries. 
So; since I use Eveready 2500MAh NiMH batteries (1.2Volt), I bought a Philips AC Adapter. It only steps down to 1.5Vs, however. Is this okay? I'm thinking it is. But; I wanted to check before I go plugging anything in!
It would seem the adapter would need to be set on 9V, I guess; since the total voltage of all 8 batteries is 9.6V.
Thanks
- Greg
So; since I use Eveready 2500MAh NiMH batteries (1.2Volt), I bought a Philips AC Adapter. It only steps down to 1.5Vs, however. Is this okay? I'm thinking it is. But; I wanted to check before I go plugging anything in!It would seem the adapter would need to be set on 9V, I guess; since the total voltage of all 8 batteries is 9.6V.
Thanks
- Greg
03-16-2007, 11:11 AM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
Hi Greg -
An "AC adapter" (by which I assume you mean a wall-wart type power supply) isn't a charger. It's a power supply. These are two different things.
Maybe there is a safe way to use the power supply as a charger, in which case I hope someone will respond with that information.
- Jeff
An "AC adapter" (by which I assume you mean a wall-wart type power supply) isn't a charger. It's a power supply. These are two different things.
Maybe there is a safe way to use the power supply as a charger, in which case I hope someone will respond with that information.
- Jeff
03-16-2007, 11:42 AM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
ORIGINAL: jdetray
Hi Greg -
An "AC adapter" (by which I assume you mean a wall-wart type power supply) isn't a charger. It's a power supply. These are two different things.
Maybe there is a safe way to use the power supply as a charger, in which case I hope someone will respond with that information.
- Jeff
Hi Greg -
An "AC adapter" (by which I assume you mean a wall-wart type power supply) isn't a charger. It's a power supply. These are two different things.
Maybe there is a safe way to use the power supply as a charger, in which case I hope someone will respond with that information.
- Jeff
Jeff:
Exactly! Ha!! I should have noticed that! [
] Back to Wal-Mart! Thanks for bringing that to light! Think, I will call Radio Shack!..... it should be simpler than this.
Radio Shack has nothing to offer.
03-16-2007, 07:16 PM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
That wall wart would've worked if you wanted to take the batteries out and charge them one at a time 
When you put the batteries into the transmitter, they get connected in series, meaning their voltages add up: 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 = 9.6 Volts.
That's nominal, though. You actually need to provide a voltage somewhat higher than that in order to charge the batteries. Like water flows only downhill, electricity only flows from higher voltage to lower.
This is the device you need: http://www2.towerhobbies.com/cgi-bin...?&I=LXN748&P=7 It will charge your transmitter pack in approximately 16 hours. That's about as fast as you want to go using a "wall wart" type charger. To charge faster, you really want a peak-detect type charger.
When you put the batteries into the transmitter, they get connected in series, meaning their voltages add up: 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 = 9.6 Volts.
That's nominal, though. You actually need to provide a voltage somewhat higher than that in order to charge the batteries. Like water flows only downhill, electricity only flows from higher voltage to lower.
This is the device you need: http://www2.towerhobbies.com/cgi-bin...?&I=LXN748&P=7 It will charge your transmitter pack in approximately 16 hours. That's about as fast as you want to go using a "wall wart" type charger. To charge faster, you really want a peak-detect type charger.
03-16-2007, 10:52 PM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
So if he sets the Wal-Dart Adaptor to 9.6 v it would charge the batteries in the transmitter right? What would the difference be between an adaptor and a charger? Voltage is voltage I would figure..
03-17-2007, 10:04 AM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
ORIGINAL: Matt Kirsch
That wall wart would've worked if you wanted to take the batteries out and charge them one at a time
When you put the batteries into the transmitter, they get connected in series, meaning their voltages add up: 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 = 9.6 Volts.
That's nominal, though. You actually need to provide a voltage somewhat higher than that in order to charge the batteries. Like water flows only downhill, electricity only flows from higher voltage to lower.
This is the device you need: http://www2.towerhobbies.com/cgi-bin...?&I=LXN748&P=7 It will charge your transmitter pack in approximately 16 hours. That's about as fast as you want to go using a "wall wart" type charger. To charge faster, you really want a peak-detect type charger.
That wall wart would've worked if you wanted to take the batteries out and charge them one at a time
When you put the batteries into the transmitter, they get connected in series, meaning their voltages add up: 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 + 1.2 = 9.6 Volts.
That's nominal, though. You actually need to provide a voltage somewhat higher than that in order to charge the batteries. Like water flows only downhill, electricity only flows from higher voltage to lower.
This is the device you need: http://www2.towerhobbies.com/cgi-bin...?&I=LXN748&P=7 It will charge your transmitter pack in approximately 16 hours. That's about as fast as you want to go using a "wall wart" type charger. To charge faster, you really want a peak-detect type charger.
Ordered! Let's put this topic to rest!
Thanks Matt!! It appears, however, that it only charges Ni-Cds. Ooops! 'Guess, I need to get some Ni-Cds. Damn! Isn't anything easy? [>:]
03-17-2007, 10:06 AM
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RE: Charging the NiMH on-board the transmitter using a Philips 1.5v AC ......
ORIGINAL: tcarp
So if he sets the Wal-Dart Adaptor to 9.6 v it would charge the batteries in the transmitter right? What would the difference be between an adaptor and a charger? Voltage is voltage I would figure..
So if he sets the Wal-Dart Adaptor to 9.6 v it would charge the batteries in the transmitter right? What would the difference be between an adaptor and a charger? Voltage is voltage I would figure..
