#149062  by Nut17
 Mon Feb 18, 2019 3:40 pm
Chequers wrote:
Mon Feb 18, 2019 8:36 am
What would the dimensions be of 1 x 200 AH LiFePO4 cell pack?
180mm long
285mm wide
240mm high to top of terminals.

Battery can lay on its side if necessary.
 #149070  by Andrew and Debbie
 Mon Feb 18, 2019 9:21 pm
Derb wrote:
Mon Feb 18, 2019 6:12 am
Me too😁 I gotta flog my current AGM's to death before I go up that road.
Derb, just leave them dead flat for a week or so. So you never noticed that wire that became disconnected on the solar controller.

That'll sort them out. Then you can join us Lithium converts.

Cheers,
Andrew
 #149074  by NeilV
 Tue Feb 19, 2019 9:15 am
Andrew and Debbie wrote:
Mon Feb 18, 2019 9:21 pm
Derb wrote:
Mon Feb 18, 2019 6:12 am
Me too😁 I gotta flog my current AGM's to death before I go up that road.
Derb, just leave them dead flat for a week or so. So you never noticed that wire that became disconnected on the solar controller.

That'll sort them out. Then you can join us Lithium converts.

Cheers,
Andrew
:lol: :lol: :lol:
If only I hadn’t just spent the $650 on new batteries 4 months ago I’d definitely consider that :-T
 #149141  by NormJ
 Thu Feb 21, 2019 11:09 pm
Hi. Recently joined this forum, and have read lots of really good info... this is my first post.

I assume the batteries will be 12V ?
What is their Maximum Continuous Discharge rate ?
I could well be interested in 4 of them if specs are good.
I am currently considering these batteries - they seem to have the best features I can find of any LFP: https://www.revolutionpoweraustralia.co ... m-battery/

I have very just purchased a brand new VW Crafter LWB HighTop 4x4 to fit out as a comfortable camper.
I am seriously contemplating having no LPG...

installing a number of Lithium Iron Phosphate batteries, many solar panels, and 3000W inverter
12V compressor fridge
air heating - diesel
water heating - diesel or 12V
230V small convection oven 1500W, short time usage

The best 230V Induction cooktop option I can find is the Thetford Topline 902. Max 2300W.
None available in NZ or Aus. Looking to get one from Europe.
Is anyone on this forum familiar with them ?
 #149153  by Nut17
 Fri Feb 22, 2019 10:15 am
Hi Norm.

You do have an interesting project. I think your biggest stumbling block will be the amount of solar you will be able to effectively fit on a VW Crafter roof. It is all very well having a large battery capacity, but you will need to be able to keep it topped up. From September through until April we are able to pretty well survive 90% of our energy requirements from our Solar / Battery set up. We use a portable single plate 2000w induction hob for most of the stove top duties,(Similar to this https://www.trademe.co.nz/home-living/k ... 90bd61776c ) microwave and outside gas BBQ for most of the cooking duties. Our fridge is a now quite common fit to RV's Samsung 255lt Inverter technology and is very efficient. (about 60 AH /24 Hrs) Water is heated via the 230 v about 50% of the time. From May through to August some electrical energy conservation measures are required and the induction hob is stored in the cupboard, and we revert to gas only hot water.
We have 1200w solar and 600 AH LiFePO4 and in real terms 300 AH would be sufficient.
We have recently negotiated a sale of our existing van and have placed an order for a new UK import smaller van, and intend to fit the following components:
800 watts Solar (4 x 200w panels)
200 AH LiFePO4 battery
2000 W PSW inverter.
Subject to the outcome of the proposed import of 200AH LiFePO4 cells I may double up the battery to 400 AH.
Each 12 volt battery comprises 4 x 3.2v cells (in reality 3.3 volts. Battery resting voltage is 13.2 volts)
Battery specs:
Product details
1. Nominal Voltage: 3.2V 2. Nominal Capacity: 200Ah 3. Limited Voltage: 3.65V 4. End Voltage: 2.5V 5. Max Continuous Discharge Current: 3C (600A) 6. Max Charge Current: 1C (200A) 7. Size: 280*180*69 (+/-1) mm 8. Weight: 5.8+/-0.2 Kg
 #149156  by Nut17
 Fri Feb 22, 2019 12:33 pm
Time frame plans for batteries.

I will not be placing the order until the end of March, so would like any pre-orders in place by then. Final pricing will be based on our exchange rate with the $US. We are currently purchasing around US $0.67 for our Kiwi $

Shipping is estimated to be about 8 weeks, so should have my hands on them sometime in June :-T :TU
 #149336  by Nut17
 Wed Feb 27, 2019 4:35 pm
Well I hope I don't create too much disappointment, but having just successfully purchased a couple of second hand 150 AH LiFePO4 12 volt battery packs at a very reasonable price I have decided not to continue with the proposed import. I was becoming quite frustrated trying to get solid confirmation on the shipping charges, which appeared to be pretty good for a start until the ship arrives in NZ. I have tried shipping agents just will not commit.
 #149345  by NeilV
 Wed Feb 27, 2019 7:59 pm
Where do you manage to source second hand batteries please?

Keen to start working on SWMBO to get solar and batteries setup for our house next year, with the idea (not yet to her :-T ) of then taking them away in the MH too (as needed). :lol:
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