Electrical set up

[tchierici]

I finally decided to buy a small fridge for my boat in Greece. It will be a small 20L compressor unit like the Alpicool K25 or the Mestic MCC-25. Their given consumption is 1amp/h for the Alpicool and 0.65 kWh/24h for the Mestic.
At the moment I have a 40W solar panel charging a 100Ah domestic battery and a 75Ah engine battery.
I run the following kit on the boat:
- Small laptop computer for navigation
- depth/wind/speed displays
- small cabin lights
- occasional smart phone

and that's it.

To keep up with the new fridge consumption I am thinking of installing an extra 60W solar panel charging the existing 100Ah battery which I only boat last year.

Will this electrical set up be ok? Should I add more battery power?

 

[tchierici]

Bump

 

[Boater Sam]

Given you usually have more sun than we have when in the UK you should be OK but an extra battery will give you a reserve to avoid over discharging and reducing the life.

Tin hat on now to avoid all the flak from the pedantic know it all experts!

 

[Alex_Blackwood]

I finally decided to buy a small fridge for my boat in Greece. It will be a small 20L compressor unit like the Alpicool K25 or the Mestic MCC-25. Their given consumption is 1amp/h for the Alpicool and 0.65 kWh/24h for the Mestic.
At the moment I have a 40W solar panel charging a 100Ah domestic battery and a 75Ah engine battery.
I run the following kit on the boat:
- Small laptop computer for navigation
- depth/wind/speed displays
- small cabin lights
- occasional smart phone

and that's it.

To keep up with the new fridge consumption I am thinking of installing an extra 60W solar panel charging the existing 100Ah battery which I only boat last year.

Will this electrical set up be ok? Should I add more battery power?

Don't know where you got your power ratings from but this looks a tad more than 1amp for the Alpicool! Even their quoted 4.5 amps is a bit low for 60 Watts. Although that is quoted as average, could be more could be less. The Mestic seems a bit less at 45 Watts.

PRODUCT FEATURE
Product Parameter

• Power Input(V): DC 12/24V
• Currency(A): DC 4.5/2.2A
• Temperature Range: -20℃-20℃
• Average Power Consumption: 60 W
• Total Capacity: 25L

 

[tchierici]

Don't know where you got your power ratings from but this looks a tad more than 1amp for the Alpicool! Even their quoted 4.5 amps is a bit low for 60 Watts. Although that is quoted as average, could be more could be less. The Mestic seems a bit less at 45 Watts.

PRODUCT FEATURE
Product Parameter

• Power Input(V): DC 12/24V
• Currency(A): DC 4.5/2.2A
• Temperature Range: -20℃-20℃
• Average Power Consumption: 60 W
• Total Capacity: 25L

Yes I double checked, the Alpicool is rated 60W which seems a bit much. I'll go for the Mestic I think.

 

[Alex_Blackwood]

Yes I double checked, the Alpicool is rated 60W which seems a bit much. I'll go for the Mestic I think.

Some of these Chinese interpretations of technical terms can be a bit suspect. What ever you choose, if you have the space I would be inclined to increase both solar and battery capacity. More is better than less!

 

[RogerJolly]

I like the 'Currency'. Is that one of those Crypto jobs?

 

[PaulRainbow]

Some of these Chinese interpretations of technical terms can be a bit suspect. What ever you choose, if you have the space I would be inclined to increase both solar and battery capacity. More is better than less!

I agree with Alex.

You'll definitely need the extra 60w panel and another battery can only be a good thing.