See an Interesting House Battery For Your Sprinter?

[Rocksnsalt]

If you’ve found a new and interesting battery that may work well for house power in your Sprinter conversion please post it up here.
Questionable batteries as well, it may save someone from getting ripped off or buying something just flat hazardous.

By interesting, I mean something uncommon or new tech about it, like:
a) small size for it’s capacity compared to the typical batteries we see.
b) features such as a display, factory 12v outlet, built in hold downs, unique terminals
c) robust charge/discharge rates etc.
d) unique heating system or other control like this particular battery below:

I ran accross this one today, 300ah in a small form factor, with bluetooth, heaters, AND external heater adjustment.

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

www.sunfunkits.com

 

[OCD Josh]

4kw for $1500? Damn. Two of those in an 8kw system would rock for $3k. Four of those in a 16kw 48v system would be amazing.

edit: Sorry, I meant to type kWh instead of kW

 

[marklg]

If you’ve found a new and interesting battery that may work well for house power in your Sprinter conversion please post it up here.
Questionable batteries as well, it may save someone from getting ripped off or buying something just flat hazardous.

By interesting, I mean something uncommon about it, like:
a) small size for it’s capacity compared to the typical batteries we see.
b) features such as a display, factory 12v outlet, built in hold downs,
c) charge/discharge rates etc.
d) unique heating system or other control like this particular battery below:

I ran accross this one today, 300ah in a small form factor, with bluetooth, heaters, AND external heater adjustment.

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

www.sunfunkits.com

If you’ve found a new and interesting battery that may work well for house power in your Sprinter conversion please post it up here.
Questionable batteries as well, it may save someone from getting ripped off or buying something just flat hazardous.

By interesting, I mean something uncommon about it, like:
a) small size for it’s capacity compared to the typical batteries we see.
b) features such as a display, factory 12v outlet, built in hold downs,
c) charge/discharge rates etc.
d) unique heating system or other control like this particular battery below:

I ran accross this one today, 300ah in a small form factor, with bluetooth, heaters, AND external heater adjustment.

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

SFK-300HP 12v 300AH 4.0 kWh Dual Heating Lithium Victron Communications Lithium Iron Phosphate Ready To Use Battery. Sunfunkits.com

www.sunfunkits.com

Although I'm really set for batteries, this is really interesting. I pass through Baton Rouge several times a year. I'll see if I can check them out.

Too bad I didn't know about this sooner. I was through last week, and back through just this morning, although probably not there on a Sunday.

It seems to check all the boxes, although to run a big inverter and AC, you probably need two. They use a 200A BMS.

Regards,

Mark

 

[Rocksnsalt]

4kw for $1500? Damn. Two of those in an 8kw system would rock for $3k. Four of those in a 16kw 48v system would be amazing.

5.12kwh Server rack batteries are out there in 12,24,48v versions for that price range. Signature Solar, SOK, Li Power for example. But not heated and a larger form. Trophy Battery seems to have a solid rep on Diy Solar Forum and you can actually talk to them, and they’re heated.

All Products - Batteries - EG4-LiFePower4 - Signature Solar

signaturesolar.com

Home - Trophy Battery

Premium Trophy Batteries & Complete Power Systems Authorized Victron Energy Dealer | In-Stock, UL-Certified Batteries Power your home, RV, marine, or off-grid system with UL-certified Trophy Batteries, expert system design, and real human support. Trophy Battery delivers reliable energy storage...

trophybattery.com

Lol on the unrelated but related sticker below

 

[TrackSprinter]

The form factor for me. Controlled heating is a plus. Need to see if this will fit in my tray and then go knock off a couple lickasto’s.

Got inconvenient for a couple days of snow and overcast. Tripped a low voltage warning on the inverter with the Keurig one morning. Working on the laptop and continuous draw from the CDH, lights, etc. Wishin I had just one more battery…

 

[mikeme]

Micro 12V 320Ah 4.1kWh LiFePO4 Battery

Smarter | Smaller | Lighter | Better -- Safe Lithium Smart Batteries. Increase your battery capacity and lifetime.

www.royerbatteries.com

Saw these the other day. outfit in BC. cost is a bit under $2k US plus shipping.

 

[mkeys]

Interesting. Those are 2x the volume but 3x the capacity compared to my Renogy 100AH batteries. So 1.5x the energy density which is cool. I thought the Renogy was already pretty aggressive in that regard with its pouch cells. But of course it has been a few years since I researched so I guess things are just getting better.

At some point in the future it will probably be worth it for me to replace my 700AH with new batteries just to optimize space and weight. Probably waiting for 3-4x density though to make it worth it.

 

[Kajtek1]

4kw for $1500? Damn. Two of those in an 8kw system would rock for $3k. Four of those in a 16kw 48v system would be amazing.

It is getting closer and closer to golf cart batteries value (minus the weigh obviously).
I am just researching batteries for my mountain HOUSE.
I can get 4 kW-h in GC batteries for about $600 and last GC batteries lasted me over 10 years.
What's life expectancy of those?

 

[borabora]

It is getting closer and closer to golf cart batteries value (minus the weigh obviously).
I am just researching batteries for my mountain HOUSE.
I can get 4 kW-h in GC batteries for about $600 and last GC batteries lasted me over 10 years.
What's life expectancy of those?

You can already get 300 ah LiFePo4 batteries for $1k from Amazon. Given that they will discharge deeper and last longer than the golf cart batteries, I'd say they are already at the same price point or probably lower when calculating cost over lifetime. However, for cold temperature use the golf cart batteries will still have the edge.

LiFePo4 cells will last 2000-4000 charge/discharge cycles before they should reach 80% capacity. Since they contain electronics (the BMS), there's a chance the electronics will fail before the battery has lost its useful capacity.

 

[autostaretx]

4kw for $1500? Damn. Two of those in an 8kw system would rock for $3k. Four of those in a 16kw 48v system would be amazing.

Be careful here.... that ad is (intentionally?) misleading.
Elsewhere on the page they say that the battery can deliver 3.5kw continuous
I suspect the 4kw is a (very) short-term pulse

It's a 300 AH battery.

--dick

 

[borabora]

Be careful here.... that ad is (intentionally?) misleading.
Elsewhere on the page they say that the battery can deliver 3.5kw continuous
I suspect the 4kw is a (very) short-term pulse

It's a 300 AH battery.

--dick

I think they mean 4 kWh as in 13V x 300 ah = ~4 kWh
Not that the mistake is confidence inspiring but I don't think they are trying to mislead.

 

[Tim Hodgson aka "E350"]

Lithionics 320Ah with internal Battery Monitor System (BMS) with Battery Heater and Bluetooth State of Charge Rate of Charge/Discharge monitor seems perfect for me at $4,500 delivered. Can add a second one if I feel the need.

12V 320AH E2107 GTX Battery Consumer Model | Lithionics Battery

lithionicsbattery.com

 

[Rocksnsalt]

Micro 12V 320Ah 4.1kWh LiFePO4 Battery

Smarter | Smaller | Lighter | Better -- Safe Lithium Smart Batteries. Increase your battery capacity and lifetime.

www.royerbatteries.com

Saw these the other day. outfit in BC. cost is a bit under $2k US plus shipping.

Yes saw those posted elsewhere a few days back. They look great, but they don’t list pricing which is a real turnoff for me.

 

[Rocksnsalt]

I think they mean 4 kWh as in 13V x 300 ah = ~4 kWh
Not that the mistake is confidence inspiring but I don't think they are trying to mislead.

Be careful here.... that ad is (intentionally?) misleading.
Elsewhere on the page they say that the battery can deliver 3.5kw continuous
I suspect the 4kw is a (very) short-term pulse

It's a 300 AH battery.

--dick

Yes for some reason they list 13.6v and apparently calc off that (4080w)?
Going off the normally listed 12.8v x 300a I’d be fine with 3840w, with that form and features. ?

But I certainly get your point, it’s a spec that should be changed to conform with standards, or should be *referenced and explained.

Re claiming 3500w continuous, unless I missed it elsewhere, that’s listed as a spec when running 4 in series for a 48v system.

• “Can be linked in series up to 48v (4 batteries in series) as well as up to 4 in parallel with a combined output of 3.5 KW continuous.”

Looking further, they also list capacity at 3.6kw, so I think they need to get their specs straightened out. A bit of a red flag. ? ⚠

 

[autostaretx]

Yes for some reason they list 13.6v and apparently calc off that (4080w)?
Going off the normally listed 12.8v x 300a I’d be fine with 3840w, with that form and features. ?

But I certainly get your point, it’s a spec that should be changed to conform with standards, or should be *referenced and explained.

Re claiming 3500w continuous, unless I missed it elsewhere, that’s listed as a spec when running 4 in series for a 48v system.

• “Can be linked in series up to 48v (4 batteries in series) as well as up to 4 in parallel with a combined output of 3.5 KW continuous.”

Looking further, they also list capacity at 3.6kw, so I think they need to get their specs straightened out. A bit of a red flag. ? ⚠

When you put batteries in series, the current available from one is the same as the current available from the bank.
As wattage in series 3.5KW/48v= 72.9 amps.
In parallel, now we're (perhaps) 3.5KW/12v = 291.7 amps.
If we use 13.6 volts, it's worse: 3.5KW/13.6v= 257.3 amps

Very confusing, and i still don't see 4000 watts.

--dick

 

[Tim Hodgson aka "E350"]

Yes saw those posted elsewhere a few days back. They look great, but they don’t list pricing which is a real turnoff for me.

$4,500 delivered.

 

[Rocksnsalt]

$4,500 delivered.

For 3?
?

 

[CraigA.]

I've been curious about Simpliphi 4.9KWh mainly because I like the profile. But not very cheap...

 

[Rocksnsalt]

When you put batteries in series, the current available from one is the same as the current available from the bank.
As wattage in series 3.5KW/48v= 72.9 amps.
In parallel, now we're (perhaps) 3.5KW/12v = 291.7 amps.
If we use 13.6 volts, it's worse: 3.5KW/13.6v= 257.3 amps

Very confusing, and i still don't see 4000 watts.

--dick

Agree some of their specs don’t seem to add up, as I mentioned in post 14.
That said,

Maybe I’m confused.

single battery:
12.8v x 300a = 3840w
or using the 13.6v on spec sheet x 300a = 4080w

 

[autostaretx]

Maybe I’m confused.

single battery:
12.8v x 300a = 3840w
or using the 13.6v on spec sheet x 300a = 4080w

I'm using the units as printed in the ad.
It's 300 amp-HOURs but they only speak of (instantaneous) WATTS when they say 3.5KW or 4.0KW.

Yes, it could be a typo on their part,

(in the sidebar of their ad, they say a 23 amp charger can take it from 0 to 100% in 12 hours ... that's 276 amp-hours)

From the specs on the page (and posted above by yourself) they show 1500 watts continuous discharge (1500/12=125 amps, 1500/13.6=110 amps)
And Max Discharge of 200 amps.
Far shy of 300 amps for one battery. (or any number in series).


BUT i'll go for "typo", since their "Watt capacity (kW)" is listed as 3.6 (should be kWh)
--dick
(but 800 amps (momentarily) for four in parallel.)