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Battery Question About New Multi-Band Portables

Steve Green NEPA

Steve Green NEPA

Serious.

(And stop giggling).

If and when I change the batteries in the new Grundig G-8 Travellers Radio, will I then have to re-adjust every pre-set plus the correct time and everything else in its memory? The manual doesn't say.

It's a pain in the neck doing that to the radio whenever they disconnect the battery in my car.

Maybe digital radio technology has advanced since the car rolled out of its showroom 20 years ago ......
 
I've had batteries out of my Tecsuns for quite a while (45 minutes for my PL-398mp, also have a PL-380 with a broken tuning knob and some buttons that won't respond, and a PL-606 with a partially broken LCD) and it still remembered the presets. The clock was forgotten after about 45 min, though. The manual for my PL-398mp and PL-606 both say under "important matters for using batteries" that the clock will stop working, but pre-stored frequencies are still kept. The Grundig G8 is basically a rebranded Tecsun PL-300WT, which is an older model using the same type of SiLabs SI4734 DSP chip, and may or may not retain presets when the batteries are removed for an extended time. I would think you should have at least a few minutes, though, in any case.
 
I imagine these days, they must have a small amount of FLASH memory, or some other type of non-volatile RAM, in which they retain the presets and other settings. I can leave the batteries out of my Yacht Boy 400PE for months on end and it still retains the frequencies I have in its memory.

Contrast that to my '87 PRO-2004, which requires a seperate 9-volt battery to maintain its preset RAM!
 
My Tecsun PL-390 it retains the presets and anything else stored between battery changes. The LCD will even stay lit. I'm guessing it has a capacitor or something that holds a temporary charge while batteries are being changed. I believe you can also power it from the USB port.
 
I've never had to reset anything after changing batteries in the G8. I'm not sure if it will really last 45 minutes between changes before you lose anything programmed in, but even after taking a few minutes to change the batteries, everything stays as it was before the old ones were removed.
 
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