Bailey radio vs sony radio

[nigel_416688]

I'm not too happy with quality of my standard fit bailey cd/radio 40w output. So have purchased a sony cd/radio 50w output, which is excellent, my concern is that the cast ally heat sink at rear gets quite warm, almost hot, where as the bailey with no heat sink is barely warm. What are issues if any for power consumption on 12v battery with the differance in heat given off. Thanks

 

[ProfJohnL]

Nigel,

I think you have answered your own question. Heat equates to energy used.

Whilst temperature is a pretty good indicator, it may be the Sony only dissipates its heat through the heat exchanger, and very little elsewhere, and the Bailey model may have a lower spot temperature but be warmer over a greater area.

The best guide is to measure the current each radio uses with an Ammeter, which ever radio uses more current will take more out of the battery.

 

[JTQ]

Radios for Automotive use need to pay no attention to their power consumption as there is a huge alternator running. So typically they are very power hungry; in a completely different league to those aimed at the portable domestic market.

So as John L states its important to select any radio for use in a caravan very aware of that units power needs.

Our vans original equipment fitted Panasonic consumed 3.96 watts [0.33amps] when "off"!

9.6 Watts [0.8Amps] as a radio at "normal" loudness, and 21.6 Watts [1.8Amps] when playing a CD or video or Mp3 DVD.

Stupidly it was factory wired without the equivalent of the cars "ignition switch" hence the drain of 4watts 24-7 even when you thought it was "off". I wired in an "ignition switch", doing this reduced the "off" drain to a few milli-Amps.

 

[JTQ]

Radios for Automotive use need to pay no attention to their power consumption as there is a huge alternator running. So typically they are very power hungry; in a completely different league to those aimed at the portable domestic market.

So as John L states its important to select any radio for use in a caravan very aware of that units power needs.

Our vans original equipment fitted Panasonic consumed 3.96 watts [0.33amps] when "off"!

9.6 Watts [0.8Amps] as a radio at "normal" loudness, and 21.6 Watts [1.8Amps] when playing a CD or video or Mp3 DVD.

Stupidly it was factory wired without the equivalent of the cars "ignition switch" hence the drain of 4watts 24-7 even when you thought it was "off". I wired in an "ignition switch", doing this reduced the "off" drain to a few milli-Amps.

The radio is a Pioneer DVH-3900MP not a Panasonic as I stated, memory going. Re-reading it looked odd and so I have been out to the van to check.

However the power consumptions quoted are right as they were to hand on this computer as I typed.

Cheers John

 

[Dustydog]

The standard Bailey unit we have is accetable. However as soon as the master 12v switch is turned off the radio loses all its memory neccessitating re prgramming. A real pain. But clearly memory needs power .

Cheers

Dustydog

 

[JTQ]

The standard Bailey unit we have is accetable. However as soon as the master 12v switch is turned off the radio loses all its memory neccessitating re prgramming. A real pain. But clearly memory needs power .

Cheers

Dustydog

Dustydog;

I know mine is not a Bailey radio but I found mine has two power feeds but these were joined together from one supply by the van maker.

Simply by breaking into one of them so one went via a switch ["ignition switch alternative"] then the memory was retained and the drain was I recall about a mere 7 mA.

This way you keep the memory and in my case only drain about 1/50th of the power.

Its worth seeing if your radio has a similar feature; I suspect most must have to avoid draining the battery in a car if you inadvertently had left the radio on whilst parked. It is a pain if the memories are lost.

 

[Dustydog]

Dustydog;

I know mine is not a Bailey radio but I found mine has two power feeds but these were joined together from one supply by the van maker.

Simply by breaking into one of them so one went via a switch ["ignition switch alternative"] then the memory was retained and the drain was I recall about a mere 7 mA.

This way you keep the memory and in my case only drain about 1/50th of the power.

Its worth seeing if your radio has a similar feature; I suspect most must have to avoid draining the battery in a car if you inadvertently had left the radio on whilst parked. It is a pain if the memories are lost.

Thanks JTQ

I'll check that out.

Cheers

Dustydog

 

[SirRogerFFS]

Dustydog a point to remember here as well is when you have the memory lead attached, remeber to turn off battery when leaving the van for any length of time as you may well go back to a flat battery.

The memory side of radio drinks battery power

Sir Roger