[Elecraft] KX3 internal batt. questions?

Don Wilhelm w3fpr at embarqmail.com
Mon Jun 24 20:21:44 EDT 2013


Mike,

The KX3 uses 8 AA size batteries.  Access to the batteries is easy - 
loosen the 4 thumbscrews on the corners and separate the 2 halves.

You do not have access directly to the battery terminals.  The KXBC3 
option will keep NiMH batteries charged.  Without that option, the 
batteries must be removed for charging.

It is not like the K2 which uses an SLA (Sealed Lead Acid - aka Gell 
Cell) battery.  Alkaline AA cells can be used as well as NiMH, and 
although they are not rechargeable, they are commonly available in case 
of an emergency.

Yes, there is a series diode for reverse polarity protection.  The 
internal voltage will be about 0.3 volts less than the external supply.

73,
Don W3FPR

On 6/24/2013 11:29 AM, ac5p at sbcglobal.net wrote:
> Dont have a KX3 (yet) but curious about the points below if someone can enlighten me?
>   
> Is access to terminals and exchange of  int. battery for KX3 as inconvenient as it is for the K2?
> Is there a series diode on the ext. power connector that will cause forward bias voltage drop if powered by external battery?
>   
>



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