[Healeys] off topic rechargeable battery query

[Bob Spidell]

Ah, yeah. Didn't catch that (although it's probably a single 6V battery with 4 internal 1.5V cells). 

1.5V would not be sufficient to power a radio signal suitable for even a portable phone. 

Bob 

----- Original Message -----



Hi 
Presumably there are 4 1.5 Volt cells in the phone that are connected in series. 4 * 1.5 = 6, voila. 

Per 



The mAH is a rating of how much current the battery can supply for how long: 

'milli Amp Hour' 

Get the highest rated you can find/afford; though the rating on the Chinese knock-offs--I think most of them are--seems to be overstated. The load--how much current will be used--is determined by the circuit on the phone. 

The statement on the charger makes no sense; applying 6V to a 1.5V battery would cook it in short order (putting 48V on a car battery would boil the electrolyte; creating a major mess and possibly an explosion). I suspect it's a nominal rating; i.e. it will put out 150mAH at 6v, but only needs about, oh, 2V or less to charge the batteries and would supply 450mAH at that voltage. 

E (voltage) = I (current) * R (resistance). Plug in any 2 known values--and use a little algebra if necessary--and you'll get the third. 

Bob 





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