Is this the best UK Life4Po leisure battery.

[JockandRita]

BBQ'd, eaten, and everything washed up.

for a 12V system, just multiply the AC amps by 20. so 2A on AC = 40A on DC. It will maybe be a little less but with voltage drop due to sag and inverter inefficiencies, x20 will be close enough.

but yes x20 is close enough, W=VxA so therefore A=W/V.

Thanks both.

So, on that basis, a 2000 watt induction hob at full power would consume 160A- 166A from the batteries, but at half or even a third power we are looking at anywhere from 83A down to 33A per hour, which is more realistic usage, but unlikely as the cooking time would only be a percentage of an hour. This would mean that an individual BMS for a 150A Lithium would handle that consumption, without closing down.
If I've got that wrong, I am more than happy to be put right.........please.

Also, can the BMS of each battery work together as one, and be controlled by the same Bluetooth App?

Cheers,

Jock.

 

[funflair]

BBQ'd, eaten, and everything washed up.




Thanks both.

So, on that basis, a 2000 watt induction hob at full power would consume 160A- 166A from the batteries, but at half or even a third power we are looking at anywhere from 83A down to 33A per hour, which is more realistic usage, but unlikely as the cooking time would only be a percentage of an hour. This would mean that an individual BMS for a 150A Lithium would handle that consumption, without closing down.
If I've got that wrong, I am more than happy to be put right.........please.

Also, can the BMS of each battery work together as one, and be controlled by the same Bluetooth App?

Cheers,

Jock.

The sums are right Jock but I don't think you would ever need 2kw on the induction, I think possibly 1200 watts is as much as I have seen and on the lower setting it tends to cycle on/off anyway so you would find the power consumption pretty favourable I think, different batteries have different capacity BMS and not always relative to the ah capacity so you would need to check specs, re your last question, sorry I don't know.

 

[Hoovie]

BBQ'd, eaten, and everything washed up.




Thanks both.

So, on that basis, a 2000 watt induction hob at full power would consume 160A- 166A from the batteries, but at half or even a third power we are looking at anywhere from 83A down to 33A per hour, which is more realistic usage, but unlikely as the cooking time would only be a percentage of an hour. This would mean that an individual BMS for a 150A Lithium would handle that consumption, without closing down.
If I've got that wrong, I am more than happy to be put right.........please.

Also, can the BMS of each battery work together as one, and be controlled by the same Bluetooth App?

Cheers,

Jock.

something to bear in mind of with Induction Hobs and also Microwaves .... they work by power cycling between full and off to average the power setting selected. This means your Inverter and batteries must both be capable of delivering to the maximum power of the device regardless.
So your BMS needs to have a 200A capability. Most 150A Lithiums probably don't have that, but if you have 2 in parallel you should be fine as they will share the load as long as they have a 100A minimum BMS.

 

[JockandRita]

This means your Inverter and batteries must both be capable of delivering to the maximum power of the device regardless.

Yes, the PSW inverter is a 2000w unit, able to cope with the 850W Combi Microwave oven, however, I appreciate (as Martin suggested), that the hob is extremely unlikely to be used at full capacity.

So your BMS needs to have a 200A capability. Most 150A Lithiums probably don't have that, but if you have 2 in parallel you will be fine as they will share the load.

That was my initial thinking, so thanks for confirming that for me Hoovie.

Cheers,

Jock.

 

[Hoovie]

Couple of recollection observations ....
I fitted a 2000W Induction Hob in my last Camper Conversion (it was an all-electric setup, no LPG).
If I used the hob at full power or if I used the 2000W water heater, the DC current did get over 200A going into the Victron Multiplus 12/3000.
I was running Lead Carbon AGMs so didn't have any BMSes to worry about

With the 2000W Hob, I did notice it was like a 2 stage thing. If I set the power over 1000W, it would cycle between off and full 2000W, but when I used it at around 400W it would actually cycle between off and 1000W. How typical this is I don't know. I have induction in the house and that does the cycling as well but no idea if between off and max, or off and part-max (doesn't really matter so much in the house of course). very rarely ever use full power on the house induction. Goes between 1 to 9 and maybe 5-6 at the most is the most used once something got to the boil?

(I found 400W in the camper the sweet spot for making a brew. Kettle on and by the time got the cups, teabags, sugar and milk ready the water was just about to boil)

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[funflair]

Couple of recollection observations ....
I fitted a 2000W Induction Hob in my last Camper Conversion (it was an all-electric setup, no LPG).
If I used the hob at full power or if I used the 2000W water heater, the DC current did get over 200A going into the Victron Multiplus 12/3000.
I was running Lead Carbon AGMs so didn't have any BMSes to worry about

With the 2000W Hob, I did notice it was like a 2 stage thing. If I set the power over 1000W, it would cycle between off and full 2000W, but when I used it at around 400W it would actually cycle between off and 1000W. How typical this is I don't know. I have induction in the house and that does the cycling as well but no idea if between off and max, or off and part-max (doesn't really matter so much in the house of course). very rarely ever use full power on the house induction. Goes between 1 to 9 and maybe 5-6 at the most is the most used once something got to the boil?

(I found 400W in the camper the sweet spot for making a brew. Kettle on and by the time got the cups, teabags, sugar and milk ready the water was just about to boil)

Our Tefal induction cycles much as you say but possibly three steps.