Fogstar lithium charge (10 Viewers)

[Flairy]

I’m glad you got in touch with OffGrid ,it’s the best way.

 

[cyberyacht]

I've got a Victron 30A B2B. Didn't realise how much the fridge was going to gobble of that (10A give or take). Wish I'd gone for the 50A B2B now.

 

[ChrisL]

I've got a Victron 30A B2B. Didn't realise how much the fridge was going to gobble of that (10A give or take). Wish I'd gone for the 50A B2B now.

I have a Victron 30A B2B the shunt shows it charging the Fogstar Drift 230ah at 28 amps when the battery is a bit discharged, I do have a 200ah alternator though.

 

[autorouter]

I've got a Victron 30A B2B. Didn't realise how much the fridge was going to gobble of that (10A give or take). Wish I'd gone for the 50A B2B now.

The fridge will work perfectly well from the alternator output, same as the vehicle lights, wipers etc work. You could use a simple fridge relay, powered from the starter battery/alternator, triggered by the D+ signal when the engine starts. If it's only 10A to 15A, a standard 30A relay is fine. There is no need to use the boosted output from the B2B to run the fridge, it's a waste, better to reserve all that boosted power for charging the leisure battery.

 

[MichaelT]

I've got a Victron 30A B2B. Didn't realise how much the fridge was going to gobble of that (10A give or take). Wish I'd gone for the 50A B2B now.

Don't you have a Shaudt battery booster on your compactline like I do which should run the fridge? We have a 50A plus the Shaudt unit which adds about 10-15A to the Victron B2B (which only came out this year).

The 30A one does get hot and will cut out whjen it does whereas the 50A one runs a lot cooler and will deliver more amps without cutting out.

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[cyberyacht]

Above my pay grade this stuff. The guy that fitted the B2B couldn't find the charging relay to disconnect, so disconnected one of the leads on the Circuit board to disable it. Whether that has also stopped the alternator feeding the fridge, I've no idea but presume so. This stuff is a mystery to me.