check out the new remote control Jockey Wheel SmartBar Topargee products Enginesaver Low Water Alarms
Members Login
Username 
 
Password 
    Remember Me  
Click here for the Grey Nomads website -> The Grey Nomads Forum -> Techies' Corner -> battery/inverter
Post Info TOPIC: battery/inverter
stoney123


Senior Member

Status: Offline
Posts: 127
Date:
battery/inverter
Permalink  

researching to get a battery and this one 200ah says do not use > 800 watt inverter, see link. yet other ads for same battery dont display this limit, have looked at a few other brands which appear to have no limit.

http://www.batteriesdirect.com.au/shop/product/23886/V-LFP-12-200.html?utm_source=myshopping&utm_medium=cpc&utm_campaign=Batteries&utm_term=V+LFP+12+200

 

have written to manufacturer...has anyone heard of this sort of limit b4?, has anyone used this battery with > 800 watts.

 

i will leave money in wallet for a bit longer......

 



-- Edited by stoney123 on Sunday 29th of May 2016 08:12:58 AM

__________________
Woody46


Member

Status: Offline
Posts: 23
Date:
Permalink  

Hi Stoney 123. I'd suggestion getting on of the other batteries. The reason I'm writing this is about the weight of 200ah batteries, not when they are in position but to move them. One needs a winch up their proverbial so to speak. Just a thought. Woody46



__________________
R.V.Woodbridge
The Doo crew


Senior Member

Status: Offline
Posts: 242
Date:
Permalink  

Some AGM's put a limit on how many amps you can draw to protect the battery, too many amps could overheat the internals reducing its lifespan, not sure if the same applies to lithium.

Mine are 4 years old & have been hammered at times when we have used our motorhome to supply power to the house in extended blackouts, 3000w PSW inverter on 600 amp hours of battery @ 24v, they get warm to touch.

Could be UPS style battery's your looking at, good for backup but not for constant heavy loads.



-- Edited by The Doo crew on Sunday 29th of May 2016 01:36:35 PM



-- Edited by The Doo crew on Sunday 29th of May 2016 01:39:10 PM

__________________

The government cannot give anything to anybody that the Government does not first take from somebody else.
dragonfly1


Senior Member

Status: Offline
Posts: 244
Date:
Permalink  

WE HAVE TWO 120 AMP FULL RIVER AGM BATTERIES AND A 2500 WATT INVERTER AND DONT HAVE ANY PROBLEMS

DRAGONFLY1



__________________
C Geyer
Radar


Guru

Status: Offline
Posts: 5544
Date:
Permalink  

Stoney123 hi

Fusion Lithium 200 amp battery

No I have not had any experience with the batteries you asked about.

Weight 28.3 would be manageable only just.

The price of these particular batteries is coming down, good maybe very good.



__________________
macka17


Guru

Status: Offline
Posts: 3066
Date:
Permalink  

Plus if it goes you lose all
If you have 2 x 110's as most do you can spread the load and also weight to physically carry around.

With inverters. Specially with a caravan.
Watch the wattage of. unless going the whole hog. electric kettle,microwave,frypan etc.
I use genny for them and air-cond.

I found that a 300w would give 2 lights, small TV and 240v electric house fan
600w watt would give 3/4 lights TV, sat box system and fan.
without draining the battery's too much.
using for the usual 4ish hrs or so of an evening.

Bigger the Inverter. the more juice it uses. Just being there when on standby.

If you going Lithium. Apparently. The best Lithium powder comes from NZ? and US.
So I read.

__________________
Woody46


Member

Status: Offline
Posts: 23
Date:
Permalink  

Sorry all. I didn't take the time to read the details so I'm like Sgt Schultz, I know nothing. One day I was hoping to get lithium type batteries but at the moment maybe I might wait some more. Cheers all. Woody46



__________________
R.V.Woodbridge
Brenda and Alan


Guru

Status: Offline
Posts: 1237
Date:
Permalink  

Stoney123 these batteries are made up from 4 individual cells packaged in a case and include some sort of battery management system. I suspect the current draw limit may be related to either the management system or the cell interconnects, so I would wait for a reply from the manufacturer to clarify what is intended.

 The price seems OK but look at other suppliers as well. One advertises on this forum and another that I have used and is very knowledgeable is Phil at Solar4RVS in melbourne.

Alan



__________________
PeterD


Guru

Status: Offline
Posts: 4730
Date:
Permalink  

Alan, have a look at the link the OP provided. They claim "Unlike many other lithium batteries, Fusion Lithium Batteries are made using prismatic cells."

__________________

PeterD
Nissan Navara D23 diesel auto, Spaceland pop-top
Retired radio and electronics technician.
NSW Central Coast.

 
Brenda and Alan


Guru

Status: Offline
Posts: 1237
Date:
Permalink  

Peter "prismatic" refers to the shape of the individual cells namely rectangular solid (as opposed to round). They are almost all made in China and then imported as individual cells into this country and made up into battery packs by various suppliers. These battery packs usually include a battery management system to control the charging and discharging limits for the system as well as controlling the individual cell voltages to keep the whole system maintainence free. However individual cells can also be purchased for a DIY setup but knowledge of the charging/discharging requirements and individual cel voltage balancing is required for safe use.

Alan



-- Edited by Brenda and Alan on Tuesday 31st of May 2016 05:34:23 PM

__________________
Brenda and Alan


Guru

Status: Offline
Posts: 1237
Date:
Permalink  

Have a look at this site https://solar4rvs.com.au for some info on sizes prices and requirements for LiFePo4 systems.

Alan



__________________
stoney123


Senior Member

Status: Offline
Posts: 127
Date:
Permalink  

yes, more research shows there appears to be a problem with lifepo4 and inverters, it would pay to ask b4 purchase. (actually get it in writing)

 

one brand now make the claim " It's also built to withstand the load of a 1000w Inverter, where the other "Big" Brands can only run a 400w Inverter at the most."

http://www.ebay.com.au/itm/REVOLUTION-12v-100AH-LITHIUM-ION-LiFePo4-DEEP-CYCLE-BATTERY-NOT-CHEAP-THE-BEST-/272259300676

 

i am not spruiking that brand, esp with its price.

Scary stuff if you have just spent 3k on two batteries...........

 

may just go with multiple agm until lifepo4 matures and price drops. i have still not received a reply from Fusion



-- Edited by stoney123 on Sunday 5th of June 2016 02:04:16 PM

__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
Click here for the Grey Nomads website -> The Grey Nomads Forum -> Techies' Corner -> battery/inverter
Tweet this page Post to Digg Post to Del.icio.us
Purchase Grey Nomad bumper stickers Read our daily column, the Nomad News The Grey Nomad's Guidebook