Battery Chargers

chrisgee

chrisgee

Well-Known Member
Joined
15 Feb 2005
Messages
755
Location
Bath
Visit site
Looking for a new charger for 1 starter and a second bank for domestic (250amp hr. I am confused between what I know as a Battery Charger and a " battery to Battery"
charger.
What is the difference please?
Thanks all
 
chrisgee said:
Looking for a new charger for 1 starter and a second bank for domestic (250amp hr. I am confused between what I know as a Battery Charger and a " battery to Battery"
charger.
What is the difference please?
Thanks all
Click to expand...

Exactly what it implies. A "battery to battery" is to charge a secondary battery such as a small emergency battery for a VHF from, say your house battery.

Not what you want. You should be looking at multi stage chargers, probably with a 20A output and capable of charging two batteries (although most good ones have 3 outputs). I have a Cristec which is solid state so no fan noise, but there are many others on the market.
 
Tranona said:
Exactly what it implies. A "battery to battery" is to charge a secondary battery such as a small emergency battery for a VHF from, say your house battery.
Click to expand...

I thought the OP was referring to what Sterling call Battery to Battery Chargers which are used to fool the alternator into putting more power into the battery. However, I don't have one so might be talking rubbish.

As you say, I think the OP is looking for a shore power charger rather than an alternator charger.

Richard
 
I had a battery to battery charger as I described on my old boat to meet the Greek coding regs for standby power for the VHF.

Yes, I assumed the requirement was for a shorepower charger.
 
RichardS said:
I thought the OP was referring to what Sterling call Battery to Battery Chargers which are used to fool the alternator into putting more power into the battery. However, I don't have one so might be talking rubbish.

As you say, I think the OP is looking for a shore power charger rather than an alternator charger.

Richard
Click to expand...

Sterling supply: ( amongst other stuff)

"Advanced alternator regulators" that sort of attempt to deliver multistage charging from the alternator by taking over the function of the normal regulator.

"Alternator to battery chargers" (A2B) which are add on devices that simultaneously deliver "sort of " multistage charging to the house battery and bog standard changing to the starter battery.

"Battery to battery chargers" (B2B) that enable additional batteries to be charged . An alternative to but better than a vsr perhaps because they are multistage chargers and can be set to charge a different type ( nicely described on the 12 volt planet website)
 
We had lead acid deep cycle batteries for house and gel batteries for cold cranking so we had a smart charger which we could set to different charging regimes. The latest CCA batteries are Calcium.
 
chrisgee said:
Looking for a new charger for 1 starter and a second bank for domestic (250amp hr. I am confused between what I know as a Battery Charger and a " battery to Battery"
charger.
What is the difference please?
Thanks all
Click to expand...

I would suggest a Victron charger of 30a.

Either https://www.victronenergy.com/chargers/blue-power-charger-ip22

Or https://www.victronenergy.com/chargers/blue-smart-ip22-charger

A battery to battery charger is described here (at least the Sterling version) and is not what you want. https://sterling-power.com/collecti...chargers/products/battery-to-battery-chargers
 
You must log in or register to reply here.

Other threads that may be of interest

Z
Cranchi Zaffiro 34 Battery Charger
Replies
0
Views
98
Zaffiro 34
Z

Share this page

Top