SAT Battery Replacement

[Farrell]

Larry - You are correct about the general advantages of NiMH batteries vs. NiCad. You are also correct regarding the charger thing.

Don and Rob are also correct to suggest to be careful with your choice of replacement batteries. IMHO, because of the vast advantages of NiMH over NiCad, I would at least call Sandersons and ask if there is any problem with that switch. I can tell you for sure that you'd have to rig up some sort of bypass of the SAT internal battery charger and use an external smart charger that is specifically designed for NiMH. I run a lot of lights on my bicycles that are mostly powered by NiMH packs and some Li-Ion (I have used NiCad in the past but will never, ever again because of their memory and charger problems). I buy all my stuff from www.batteryspace.com . BUT, please, if you have any thoughts about heading in this direction, discuss it with Sanderson - they are the ones that know those units inside and out.

Yes, all rechargeable NiCads are 1.2V. Also, all NiMH cells are 1.2V. I don't know what the SAT requires. If it originally came with four 1.2V NiCads, then yes, it would be safe to assume that 4.8V is the target.

Terry Farrell

----- Original Message ----- 
> Rob,
> Thanks for your valued input. Yet another question!... are ALL rechargeable
> AA NiCad's 1.2 volts as opposed to non-rechargeables which are 1.5 volts?
> And, is 4.8 volts (vs. 6 volts) OK for the SAT II? My last round of
> batteries were totaling 4.8 volts. I had them in for a long time. Thanks
> again.
> Larry Trischetta
> 
> -----Original Message-----
> Your accu-tuner is an expensive instrument and part of your livelihood. 
> DON'T experiment with it.  Replace with the exact type of batteries that 
> were in there.  There should be four NiCad size AAs.  
SNIP 
> Rob Goodale, RPT
> 
>>>List,
>>>I finally got my batteries to be put in the SAT II, but now another 
>>>question
>>>is raised; The original batteries were NiCad's. Will the charger built 
>>>into
>>>the SAT II be compatible with NiMh batteries? It appears that they are NOT
>>>compatible because of this information I found at
>>>http://www.batteryuniversity.com/partone-21.htm  which states; "A charger
>>>for nickel-metal-hydride can also accommodate nickel-cadmium, but not the
>>>other way around. A charger designed for nickel-cadmium would overcharge 
>>>the
>>>nickel-metal-hydride battery." However, I found an old post where someone
>>>used the NiMH batteries and said they worked well in the SAT II. (I can't
>>>relocate that post, or else I would repost it here). The NiMH batteries
>>>supposedly have much less memory issues and last much longer. Any 
>>>thoughts?
>>>Larry
>
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