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Search took 0.02 seconds. Search: Posts Made By: Whimsical
Forum: Lithium Power Systems 06-12-2011, 23:57
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

No experience with them yet but have lurked on the car forums for quite a while and some of them have the batts for a long time without keeping them charged while they build thier cars and have not...
Forum: Electrical: Batteries, Generators & Solar 28-11-2011, 02:01
Replies: 11
Views: 1,919
Posted By Whimsical
Re: Solar Panel GRID connection help

Bill
I had thought of that before but i don't have an inverter to try it. Would want to be a fairly good sinewave though.

Mike
Forum: Electrical: Batteries, Generators & Solar 28-11-2011, 01:30
Replies: 11
Views: 1,919
Posted By Whimsical
Re: Solar Panel GRID connection help

Cat
The outback 80 is rated at 1KW input so suits me perfectly as i am using 960W. Be a bit small for u if u are going to put up the whole 1600W. Would have to use 2 of them.
What batts are u...
Forum: Electrical: Batteries, Generators & Solar 27-11-2011, 16:59
Replies: 11
Views: 1,919
Posted By Whimsical
Re: Solar Panel GRID connection help

I was wondering the same so did a little research, but not exhaustive, on the grid connect inverters. Seems they need the presence of the grid to sync to and if not present they shut down. Back to...
Forum: Marine Electronics 25-11-2011, 18:16
Replies: 4
Views: 1,525
Posted By Whimsical
Re: Identify Autopilot Pump

have a look at the hypro.co.uk website
I just had one delivered from them
Forum: Lithium Power Systems 14-11-2011, 23:47
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

For anybody in Australia that is interested.
I am getting together a group buy for CALB 180A/H cells. Price will be about 20% discount. Up to nearly 4,000A/H @12v now. Order will be placed early Dec...
Forum: Marine Electronics 14-11-2011, 04:29
Replies: 63
Views: 11,753
Posted By Whimsical
Re: DIY Research and Development

Gello
A hall efect sensor would be difficult, would be fine if the mast only rotated to a set point but it is totally variable to 360 degrees plus. An encoder disk won't work either as i have a...
Forum: Lithium Power Systems 11-11-2011, 22:53
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Tassiebloke
I think the car and bike guys were the early adopters. They have sorted most of the problems and put the research into the public realm. Us boaties are the second wave
Forum: Lithium Power Systems 11-11-2011, 22:42
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Terry
The main worry i have is with the alternators. I have seen them go seriously over voltage when the reg fails so i was thinking of a field disconnect if that happened either triggered by the...
Forum: Lithium Power Systems 11-11-2011, 06:17
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Small maths check. If your charging potential was 13.8 and one cell got to 4.8 then the other 3 would need to have an average of 3v each. That would be a huge imbalance. if the others were at 3.3v...
Forum: Marine Electronics 06-11-2011, 17:17
Replies: 63
Views: 11,753
Posted By Whimsical
Re: DIY Research and Development

Wind over the bow is enough for me.
I was going to use an Airmar PB200 and a Maretron DSM250 for the display. The PB200 has a rate compass and calculates apparent that will need correcting. B&G use...
Forum: Marine Electronics 02-11-2011, 05:13
Replies: 63
Views: 11,753
Posted By Whimsical
Re: DIY Research and Development

I think there is quite a bit of interest, i know I am following it closely. Nearly 1,000 views so far. If i had some current coding skills i would certainly offer them.
I don't have any electronics...
Forum: Powered Boats 06-10-2011, 23:47
Replies: 101
Views: 16,439
Posted By Whimsical
Re: Outrageous Fuel Costs ?

You must have never been to Bandung then.
Forum: Marine Electronics 09-09-2011, 03:52
Replies: 63
Views: 11,753
Posted By Whimsical
Re: DIY Research and Development

Why?
It is just Can Buss with a proprietry set of PGN's. Nothing wrong with reverse decoding them, many already have been. I saw a site that has done a lot of work on it but i can't find it just...
Forum: Marine Electronics 04-08-2011, 18:33
Replies: 14
Views: 3,968
Posted By Whimsical
Re: Anyone Using a Clover Sunbook Full Sunlight-Viewable Notebook ?

John
Why not just get the screen, $200, and put it in any netbook. Thats what i will be doing to run Open CPN. They have a higher resolution version comming but don't say when.

Mike
Forum: Lithium Power Systems 03-08-2011, 21:05
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

T1 Terry
13.8V Thanks for that, never seen anyone state what is the lowest voltage they need to accept a full charge rate.
I think Bill wants leave his existing L/A as they are and use the...
Forum: Lithium Power Systems 03-08-2011, 20:45
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Bill
I see better now what u are trying to achieve. 75V would be your open circuit voltage but it will fall as u draw more current from the panels. That gives u a max of 3.75V per cell, well below...
Forum: Lithium Power Systems 03-08-2011, 17:50
Replies: 7,532
Views: 1,395,858
Posted By Whimsical
Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Solar panels output voltage can vary quite a lot depending on load and illuminence, would need it's own regulator. In a mixed system it would be better to have 2 independent systems and a batt...
Forum: Lithium Power Systems 18-07-2011, 00:45
Replies: 98
Views: 29,257
Posted By Whimsical
Re: LiFePo4 House Bank Using SmartHousePower BMS

Sky energy 100AH
At .5c discharge rate and 25 degrees C there is bugger all left after 3.0V, under 10%. Thats what i will be setting mine at

Bugger the graph didn't paste, look here...
Forum: OpenCPN 16-07-2011, 20:32
Replies: 85
Views: 16,513
Posted By Whimsical
Re: Gippy-ai-ai . . .

:( Too many years since my coding days and too busy building the boat to get back into it. Maybe when i am anchored somewhere nice and quiet. If the Hemisphere was 1k I would have one but over 2 is...
Forum: OpenCPN 15-07-2011, 09:24
Replies: 85
Views: 16,513
Posted By Whimsical
Re: Gippy-ai-ai . . .

Will
Did you ever do any more on the gps compass idea. Maybe as an add on to your arduino magnetic compass. I would love a Furuno SC 30 but the $ will mean it never happens

Mike
Forum: Lithium Power Systems 09-07-2011, 09:06
Replies: 98
Views: 29,257
Posted By Whimsical
Re: LiFePo4 House Bank Using SmartHousePower BMS

Li-ion batteries are very well understood. The main problem seems to be that people cherry pick facts to support thier arguments either in support or against. There are many chemistries all with...
Forum: OpenCPN 23-06-2010, 11:01
Replies: 24
Views: 3,965
Posted By Whimsical
Thanks for the tips Now that is very civilised...

Thanks for the tips
Now that is very civilised isn't it. Have to try it tomorrow, on a microhard box now. Sounds better than the old ? in CPM, that dates me doesn't it.:D
I have a couple of inches...
Forum: OpenCPN 23-06-2010, 08:18
Replies: 24
Views: 3,965
Posted By Whimsical
yes i relised that after Still have to get used...

yes i relised that after Still have to get used to a command line again and the differences to what i was used to, been so many years since i have done that. Haven't seen any sort of path setting...
Forum: OpenCPN 23-06-2010, 03:22
Replies: 24
Views: 3,965
Posted By Whimsical
Just downloaded it as a the only user on the...

Just downloaded it as a the only user on the system. It was put in the home/user/download directory, moved it up a level and it worked.
I am trying to get the laptop sorted before i head o/s for 2...
Showing results 1 to 25 of 500
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