12v marine battery in series with 12v deep cycle

[almac]

No at your price point and not made in Down Under.

There are only two manufactures I know of that make an AGM that can even remotely handle C/2 for any given length of time, and you do not have them unless they are Concorde Aircraft Military grade or Optima Blue Tops.

ok, by "any length of time" do you mean sustained? how about 15secs bursts like using an 1800w (75amp at 24v) chainsaw

[Sunking]

* Hybrid Batteries .. but on the charge/discharge side of FLA hybrids you can go as high as C/4, and some cases C/2. just what i need

No at your price point and not made in Down Under.

There are only two manufactures I know of that make an AGM that can even remotely handle C/2 for any given length of time, and you do not have them unless they are Concorde Aircraft Military grade or Optima Blue Tops.

[almac]

No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.

im not using it for as a marine battery, you stated its an SLI which it is not. its a hybrid. physical size does not matter because im not using it in a 4x4 . price matters its cheap, its working well, its only discharging to 80% overnight, recharging to 1.260 within 2-3hrs.

here are a couple of reviews using similar batteries from SCA for running fridges and other accessories .

http://www.aulro.com/afvb/technical-chatter/185317-marine-batteries-starter-auxilliary-batteries-any-good.html

[inetdog]

No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.

+1
They have no particular liability if you choose to use the wrong kind of battery, even if it is based on their naming of the battery.

[Bala]

according to SKs sticky batteries marketed as marine with an RC rating is a hybrid. i doubt SCA are going to ruin their brand perpetrating fraud. anyone stuck out in the pacific ocean with a dead SLI battery they bought from SCA marketed as a marine would quickly see SCA out of business. i now have a 160ah 24v hybrid bank so the discharge on the coffee machine would be c/3. also according to SKs sticky a discharge for hybrids up to c/2 is ok

No one in their right mind would use that battery for Marine or 4x4. For the same physical size you can more cca and ah in a quality semi sealed calcium type battery. Those are own branded sca, or in full super cheap auto. Sca would not be liable if they fail other than to replace a faulty item.

[almac]

Say what?

* Hybrid Batteries .. but on the charge/discharge side of FLA hybrids you can go as high as C/4, and some cases C/2. This makes them very useful for folks who use over sized Inverters or have to use high charge rates because of low Sun Hours in winter.

just what i need

[Sunking]

according to SKs sticky a discharge for hybrids up to c/2 is ok

Say what?

[almac]

The new batteries are probably just a cheap start battery with a marine 4x4 sticker on the. I would not use them in my boat or 4x4.

They will die quickly with this kind of discharge and load.

according to SKs sticky batteries marketed as marine with an RC rating is a hybrid. i doubt SCA are going to ruin their brand perpetrating fraud. anyone stuck out in the pacific ocean with a dead SLI battery they bought from SCA marketed as a marine would quickly see SCA out of business. i now have a 160ah 24v hybrid bank so the discharge on the coffee machine would be c/3. also according to SKs sticky a discharge for hybrids up to c/2 is ok

[SunEagle]

This is today's microwave and toaster run (on a large 800ah 48V system) it beats on it pretty hard!
[ATTACH]6995[/ATTACH]

Thanks for the vivid picture Mike.

Microwaves and a battery power source is not a good combination.

[Mike90250]

InverterPowerLog_6-8-2015am3250watts.jpgThis is today's microwave and toaster run (on a large 800ah 48V system) it beats on it pretty hard!

[Bala]

A C/1.5 discharge is too fast for FLA batteries. They will not last very long.

The new batteries are probably just a cheap start battery with a marine 4x4 sticker on the. I would not use them in my boat or 4x4.

They will die quickly with this kind of discharge and load.

[SunEagle]

takes about 2mins on a 50amp discharge to make a coffee. a discharge rate of c/3 on a 160ah battery bank, i think in one of SKs stickies a discharge of c/3 is fine for marine batteries, given im discharging bank to about 75% per day now a 160ah bank is big enough. dont need to do any more other than match the batteries. 750w panels pwm cc delivering about 400w is the right size for a 160ah bank, been thinking about why the deep cycle battery set is more discharged at days end than the marine set. would it be the marine set is sucking up more charging amps reaching full charge 1st. so denying the deep cycle charging current? or does current flow evenly through a series battery bank

here is a pic of my 3 x250w panels midday sun winter. they get 8hrs full sun in winter. from 10 till 2pm they produce 700w. it is 33 deg south here just north if sydney. [ATTACH]6986[/ATTACH]

decided to separate these batteries and charge / discharge them separately. so the coffee machine will draw 50amps from the marine batteries now at 80ah. so it will be a c/1.5 discharge. is ok?
[ATTACH]6987[/ATTACH]

A C/1.5 discharge is too fast for FLA batteries. They will not last very long.

[almac]

"Well, the car is really hard to start...."

takes about 2mins on a 50amp discharge to make a coffee. a discharge rate of c/3 on a 160ah battery bank, i think in one of SKs stickies a discharge of c/3 is fine for marine batteries, given im discharging bank to about 75% per day now a 160ah bank is big enough. dont need to do any more other than match the batteries. 750w panels pwm cc delivering about 400w is the right size for a 160ah bank, been thinking about why the deep cycle battery set is more discharged at days end than the marine set. would it be the marine set is sucking up more charging amps reaching full charge 1st. so denying the deep cycle charging current? or does current flow evenly through a series battery bank

here is a pic of my 3 x250w panels midday sun winter. they get 8hrs full sun in winter. from 10 till 2pm they produce 700w. it is 33 deg south here just north if sydney. DSCN7728.JPG

decided to separate these batteries and charge / discharge them separately. so the coffee machine will draw 50amps from the marine batteries now at 80ah. so it will be a c/1.5 discharge. is ok?
DSCN7729.JPG

[Sunking]

"Well, the car is really hard to start...."

That would be a Fricken Old Rebuilt Dodge right?

[inetdog]

Does it take you the same amount of time to start your car as it does to make a pot of coffee

"Well, the car is really hard to start...."