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Will 4.8v charger work for a 6v receiver pack?

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Will 4.8v charger work for a 6v receiver pack?

Old 05-08-2008, 07:55 PM
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msg73
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Default Will 4.8v charger work for a 6v receiver pack?

I have a Futaba tx that came with a wall charger for the rx pack. It's for 4 cell (4.8v) packs. I'm getting a 5 cell (6v) rx pack and was wondering if the charger will still work? Anybody know? Thanks
Old 05-08-2008, 08:27 PM
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systemlord
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Default RE: Will 4.8v charger work for a 6v receiver pack?

You know what, I asked that same question to myself when I got my Futaba 3PKS 2.4GHz radio. I like to keep all my batteries plugged in all the time so when I need them there ready to go at a moments notice. I do not believe 4.8V is even enought for a 6V battery, that would be like using 72 octain fuel to get your car moving. I let Futaba 9CHP computer heli radio battery die because I left it aloan for two years, now it won't charge anymore.[]
Old 05-08-2008, 08:30 PM
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Airbus 9e
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Default RE: Will 4.8v charger work for a 6v receiver pack?

The packs Futaba uses are notorious for living short lives....I've had 3 die within months of purchase. I just get a Hydrimax pack from Tower now...
Old 05-08-2008, 08:35 PM
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Default RE: Will 4.8v charger work for a 6v receiver pack?


ORIGINAL: Airbus 9e

The packs Futaba uses are notorious for living short lives....I've had 3 die within months of purchase. I just get a Hydrimax pack from Tower now...
Thats the battery that died on me, Hydrimax 8 cell 9.6V. I have one for my 3PKS, better keep it charged. NiMH batteries will completely die if left aloan for two long!
Old 05-10-2008, 06:59 AM
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msg73
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Default RE: Will 4.8v charger work for a 6v receiver pack?

ok. I'll look for a charger with 6vdc output. Thanks
Old 05-10-2008, 08:45 AM
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Default RE: Will 4.8v charger work for a 6v receiver pack?


ORIGINAL: msg73

ok. I'll look for a charger with 6vdc output. Thanks
Just keep it plugged in till you need it, you can trickle charge for years and there still good.
Old 05-11-2008, 12:44 PM
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Default RE: Will 4.8v charger work for a 6v receiver pack?

That's unusual.....The Futaba transmitter packs I've had come with 3 different radios have quit charging within 2-3 months, and I don't really beat on them that hard....I use a cycler on all my rechargable Tx/RX packs now, and have had no trobles....I usually use 6v Rx packs....I've got 5- 4.8v RX packs that are brand new....I usually just carry them as spares...
Old 05-11-2008, 03:18 PM
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Default RE: Will 4.8v charger work for a 6v receiver pack?

The newer batteries of today (Lipo and NiMH batteries) must not drop to low in voltage or they will no longer hold a charge. Lipo's have been known to bubble up after prolonged storage, my brothers did this in room temperature after two years because he stored them in a discharged state. I've had three different NiMH batteries fail to charge up after a year of inactivity, one AA 8 cell 9.6V, a 5 cell 6V hump pack for T-Maxx and a 4 cell 4.8V sub-C 3300mAh helicoptor reciever pack. All because I left them unattended for 1-2 years, since then I have kept all my NiMH batteries pluged in for at least two years and when I needed my NiMH glow igniter it was strong all day long. Now Lipo's can hold a charge for years, my brothers other Lipos held a charge for two years (stored in a charged state) and only drop in voltage by .3 volts.
Old 05-11-2008, 04:04 PM
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Airbus 9e
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Default RE: Will 4.8v charger work for a 6v receiver pack?

The Futaba TX packs I had die were all NiCads.....The NiMh packs I have are all in good shape. I don't discharge them, but when I know I'm not going to be using them, I'll run them on the cycler before I put them away....
Old 05-12-2008, 04:11 PM
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Default RE: Will 4.8v charger work for a 6v receiver pack?

If your 4.8 vdc charger puts out in excess of 6 vdc with no load (battery not connected), then it will charge the 6 vdc battery pack, however, it may take a very long time as the charging current will be reduced. I would definately purchase a new 6 VDC charger (I just added to this post to make you feel like you are doing the right thing,.......chuckle).
Old 05-18-2008, 02:08 AM
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Default RE: Will 4.8v charger work for a 6v receiver pack?

measuring the no load current of a wall wart charger is highly inacurate... I had a couple 12v 300mah chargers for nimh heli batteris, made to charge 8.4v packs.. with no load the voltage was 9 volts on one and 19 volts on the other.... but once they had a load on them they both stabalized right at 11 volts....

Whats the output on your charger? If its under 7.25 volts it wont give you a full charge,.....

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