HOW

[Bill Glaze]

I've been using a new digital movie Sony Handycam camcorder.  It appears 
to have lithium batteries.  (Well, that's what they say, anyhow.)  
Compared to the older NiCds, the stored energy is truly fantastic.  The 
size battery that used to run a mini-cam for, at the most, 1/2 hour now 
cheerfully runs it for 2 hrs plus.  A large size/capacity battery will 
give me 6 hours service, instead of the (maybe) 2 hours previously.
 From what Eric says, switching to this same type of batteries in Tx and 
Rx just make charging unnecessary at the field.  (Not that field 
charging particularly bothers me.)
Might try some of them myself.  Just how picky are they about field 
charging if it should become necessary?  Say, Tx got left on in 
impound?  Or, airplane didn't get turned off after a flight?  I've had 
both happen on occasion.  (My Bad)
Comments?

Bill Glaze

Henderson,Eric wrote:

> With Nicads you can leave them on trickle  @ 10-15 mA depending upon 
> capacity. Done this for years - Load-test before flying.( I don't use 
> Nicads any more.)
>
> With NiMH's I have been doing the "trickle" with some. With other 
> packs I have been medium charging while going to the field. Nearly 
> three years of this has shown no difference. When I say medium 
> charging I am using the new Hobbico Quick Field Charger Mark-II. It 
> lets you set the charge rate on its two output channels. I use 200-300 
> mA on my 30 minute drive and it fully charges both the TX and the RX 
> packs before I get there, without heating up the packs. The 1830 mAh 
> NiMH packs that I use  in TX's and RX's, have no memory problems and 
> hold their charge pretty well. (They are lighter than my Nicad packs)
>
> With my Li-ions I have found that they hold their charge for a long 
> time and they won't take a boost until I have flown a flight (I am 
> talking three month periods here).
>
> I recently tested some Li-ion TX packs. Held most of its charge for a 
> year when unused - dropped 0.8v  Began at 14.1v. I could fly three 
> pattern days with one TX charge. Put one in a JR PCM 856 car radio 
> and  ran 4 cars, basically all day. Looking for a suitable field 
> charger. Uses two packs of three Li-ions in parallel and is nice and 
> light. The RX packs are lighter than the 4 -cell Nicad or  NiMH packs. 
> About 3,4 oz if I recall.
>
> Regards,
>
> Eric.
>
> My source BTW is bfurgang at ez2.net
>
>
>
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of Brian Young
> Sent: Friday, January 23, 2004 9:53 AM
> To: discussion at nsrca.org
> Subject: Re: HOW
>
>
> I do this too.
> --- Tony Stillman <tony at radiosouthrc.com> wrote:
>> Dwayne:
>>
>> I recommend fast-charging on the way to the field.
>>
>> Tony Stillman
>> Radio South
>> 3702 N. Pace Blvd.
>> Pensacola, FL 32505
>> 1-800-962-7802
>> www.radiosouthrc.com
>>   ----- Original Message -----
>>   From: Dwayne & Nancy Brown
>>   To: Pattern List
>>   Sent: Thursday, January 22, 2004 5:03 PM
>>   Subject: HOW
>>
>>
>>   What is the recommended procedure to keep your
>> batteries ready for use at a moments notice?
>> Trickle charging or fast charging on the way to the
>> field?
>>
>>   Dwayne
>
>
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