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Author Topic: Lithium Battery charging time on R4040/HB-1B?  (Read 2884 times)
W4KYR
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Posts: 574




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« on: July 23, 2013, 04:49:24 PM »

Lithium Battery charging time on R4040/HB-1B?

How long does it take for the Internal Lithium Battery to charge?
Does the light go out on the adapter when it is fully charged?

Thanks
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W4KYR
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Posts: 574




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« Reply #1 on: July 23, 2013, 06:49:08 PM »

Never mind, I found the answer on another site. The answer is yes, just make sure the charger mod was done.
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AD6KA
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Posts: 2238




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« Reply #2 on: July 24, 2013, 02:15:04 PM »

Never mind, I found the answer on another site. The answer is yes, just make sure the charger mod was done.

OK, as an aside:
I have two older, simple 2m HT's (Yaesu FT-170's) that I
use primarily for camping *and* like to have
on hand for emergencies.

I have the "AA" battery holders for both HT's
and currently keep Hi Capacity NmHi AA's charged
in a separate generic regular charger for them.
(Plus a big pile of alkaline cells from Costco in the Fridge).  Grin

I have seriously *considered* in investing in AA Lithium
*rechargeable*
batteries. But I have heard that I can NOT
use my "regular" NiCad/NmHi charger with Lithium AA cells.

IS this true?Huh
1) If so, can you recommend a good brand of charger
    for *Rechargeable Lithium batteries* (preferably for
    ALL sizes (AAA, AA, C, D, 9v, etc) IF I go that route?


2) Can a charger designed for *Rechargeable Lithium Batteries*
     ALSO be used for my stock of NiCAD (not many) and NmHi batteries?
   

Thanks for sharing your knowledge, gents.
I think at this point it's patently obvious that
I am pretty clueless about batteries...... Roll Eyes
TNX AGN ES 73, Ken  AD6KA
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W4KYR
Member

Posts: 574




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« Reply #3 on: July 24, 2013, 06:03:40 PM »

That charger mod I was referring to is a mod where you have to bridge one part of the power input to another part close by to the power input.  This needed to be done on the older Youkits HB-1B (before 2012) in order to charge the special lithium batteries.

The only downside with this mod is that I can only use the special charger that comes with it. It is meant specifically for those batteries. And unfortunately that means no external power can be used unless I disconnect the lithium batteries ( I guess the batteries can explode if there is too much power charging it.)  I can go back and redo the mod with a switch or a jack in the front and 'switch out' the lithium batteries in order to use conventional power.

Newer versions of the HB-1B, have a separate charging jack right out in the front so the mod is not necessary. These lithium batteries are special, and are not the typical AA type. The batteries are supposedly 3.7 volts each and comprise a battery pack of 3, I bought the battery pack from Canadian seller on E-Bay. When fully charged these batteries put out 12.7 volts.

I wish I could better answer your question regarding batteries and charging. I been using various kinds of Gel Cell batteries over the years and been charging them with different wall warts and keeping an eye on the voltage and charge times.

Regarding the questions about using lithium AA batteries with Nicad chargers, I think a different charger is needed. I believe I have seen AA Lithium batteries and the charger at Sams Club where they keep the regular alkaline batteries at.

Hopefully someone here can better explain charging batteries that I just did. My knowledge is limited in that field.

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