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Search took 0.00 seconds. Search: Posts Made By: Tinkerer007
Forum: Electrical: Batteries, Generators & Solar 17-09-2013, 21:05
Replies: 24
Views: 9,544
Posted By Tinkerer007
Re: AGM or Gel Batteries ?

I had one cell die on the way back from Hawaii.

The company I bought the battery from went out of business and I had an issue getting it replaced. Ended up with one 180 AH cell.

Even with a...
Forum: Electrical: Batteries, Generators & Solar 31-12-2010, 21:01
Replies: 395
Views: 132,890
Posted By Tinkerer007
Will Thunder Sky warranty or not?

I bought a battery (4 cells) earlier this year for my race to Hawaii. One of the cells is bad, manifesting itself in reduced capacity.

The company I bought the cells from has gone out of...
Forum: Lithium Power Systems 06-06-2010, 21:12
Replies: 98
Views: 30,671
Posted By Tinkerer007
I think your math is off by a factor of 10x. So,...

I think your math is off by a factor of 10x. So, should be $6.25 per AH. So you think lead acid batteries are ~$2 per AH?

And, if you don't like the price, you can shop for your own batteries. ...
Forum: Electrical: Batteries, Generators & Solar 03-06-2010, 15:45
Replies: 24
Views: 9,544
Posted By Tinkerer007
I recently installed an LiFePO4 battery and so...

I recently installed an LiFePO4 battery and so far it is great.

Usable capacity is double the lead batteries.
Charge is more efficient.
Weight is half of lead batteries.

Two downsides are...
Forum: Lithium Power Systems 06-05-2010, 08:47
Replies: 98
Views: 30,671
Posted By Tinkerer007
I like it. A number of features I didn't even...

I like it. A number of features I didn't even know I wanted.

I like the visual and audible indicators for action conditions. Does it use the same signals for all conditions, or are there...
Forum: Electrical: Batteries, Generators & Solar 03-05-2010, 21:21
Replies: 24
Views: 12,396
Posted By Tinkerer007
Smile Who uses lead batteries anymore. I have LiFePO4...

Who uses lead batteries anymore. I have LiFePO4 batteries. Half the weight, twice the usable capacity. No Puekerts effect, fast charging. 10x the cycles of lead.

I replace two 100 AH batteries...
Forum: Electrical: Batteries, Generators & Solar 30-04-2010, 12:13
Replies: 395
Views: 132,890
Posted By Tinkerer007
I took my boat out last weekend, and it sure is a...

I took my boat out last weekend, and it sure is a pleasure to have enough juice. We sailed most of the day, used the SSB briefly, and when it was time to start the motor, it fired up easily. There...
Forum: Electrical: Batteries, Generators & Solar 30-04-2010, 12:07
Replies: 395
Views: 132,890
Posted By Tinkerer007
The other day, I noticed that ThunderSky has a 12...

The other day, I noticed that ThunderSky has a 12 volt battery. This may land credence that the cells do not need balancing.

Although it was only the 40 and 80 AH batteries.
Forum: Marine Electronics 28-04-2010, 13:57
Replies: 45
Views: 6,435
Posted By Tinkerer007
LED monitor?

Is anyone finding a LED TV / monitor that runs on 12 volts? It seems that this would be a great solution with the lower power usage.

I did a search on DC-DC ATX PSUs and found a place that has...
Forum: Electrical: Batteries, Generators & Solar 14-04-2010, 14:29
Replies: 395
Views: 132,890
Posted By Tinkerer007
For a simpler system , I have the Mini BMS. ...

For a simpler system , I have the Mini BMS. There are individual PCBs on each cell. These will limit the current (up to .75 amps) to a cell as it charges, allowing the other cells to catch up.
...
Forum: Electrical: Batteries, Generators & Solar 13-04-2010, 20:13
Replies: 395
Views: 132,890
Posted By Tinkerer007
I just weighed one of the West marine deep cycle...

I just weighed one of the West marine deep cycle 90 AH batteries and it was 53 lbs. So, for the similar weight I get 4 times the usable AH. 90 to 30 state of charge compared to 80 to 50 state of...
Forum: Electrical: Batteries, Generators & Solar 13-04-2010, 17:05
Replies: 395
Views: 132,890
Posted By Tinkerer007
They were included with the battery. The...

They were included with the battery.

The first picture is how the battery came out of the shipping crate.
Forum: Electrical: Batteries, Generators & Solar 13-04-2010, 16:35
Replies: 395
Views: 132,890
Posted By Tinkerer007
I installed my 200 AH Thundersky battery in the...

I installed my 200 AH Thundersky battery in the boat this weekend. There were a couple "uh-oh" moments like when I got the lights turned on but there was no current draw (The current was shown on...
Forum: Electrical: Batteries, Generators & Solar 30-03-2010, 17:52
Replies: 395
Views: 132,890
Posted By Tinkerer007
Does anyone have a list/table of the...

Does anyone have a list/table of the benefits/draw backs of each of the battery chemistries?

It would be good to some technical specifications, like typical charging voltages, max charged...
Forum: Electrical: Batteries, Generators & Solar 26-03-2010, 22:58
Replies: 395
Views: 132,890
Posted By Tinkerer007
what model Fluke meter s that with the data out...

what model Fluke meter s that with the data out capability?
Forum: Electrical: Batteries, Generators & Solar 25-03-2010, 09:17
Replies: 395
Views: 132,890
Posted By Tinkerer007
I put the charger on last night and then promptly...

I put the charger on last night and then promptly went to bed. I didn't even think to check on it this morning.
Forum: Electrical: Batteries, Generators & Solar 25-03-2010, 08:19
Replies: 395
Views: 132,890
Posted By Tinkerer007
So the spot light lasted 30:15. (At least the...

So the spot light lasted 30:15. (At least the spot light was on and shining down the hallway at 30 hours, and then out 15 minutes later.)

That is about 6.4 A x 30 H = 192 AH.

Any other tests I...
Forum: Electrical: Batteries, Generators & Solar 24-03-2010, 22:42
Replies: 395
Views: 132,890
Posted By Tinkerer007
Yeah, no such luck. Well there is a fuse, but...

Yeah, no such luck. Well there is a fuse, but it is only .5 A. But there was the smell of burned silicon and the residue of some part with the traces lifting off the PCB. The voltage was working...
Forum: Electrical: Batteries, Generators & Solar 24-03-2010, 21:26
Replies: 395
Views: 132,890
Posted By Tinkerer007
It was still going when I got home at 5:15 (23...

It was still going when I got home at 5:15 (23 hours). Amps was at 6.37, and voltage was at 12.73 V. Unfortunately I won't be measuring Amps with that meter anymore. I tried to measure voltage...
Forum: Electrical: Batteries, Generators & Solar 24-03-2010, 10:36
Replies: 395
Views: 132,890
Posted By Tinkerer007
Be aware that you have to add 10% for shipping...

Be aware that you have to add 10% for shipping from China to US and then there will be additional shipping within the US. So:

price LFP: $2,904 plus BMS

might be more realistic. I think the...
Forum: Electrical: Batteries, Generators & Solar 24-03-2010, 10:24
Replies: 395
Views: 132,890
Posted By Tinkerer007
Nick, Is there a reason you are looking at...

Nick,

Is there a reason you are looking at the 200AH cells?
Do you currently have 3 banks?

There are 400 AH and 800AH cells available. Might reduce the wiring mess.

Your evaluation is...
Forum: Electrical: Batteries, Generators & Solar 23-03-2010, 12:07
Replies: 395
Views: 132,890
Posted By Tinkerer007
I have a Digital Multi meter that can measure to...

I have a Digital Multi meter that can measure to 10A. So if I could figure out a 10A load, that would take 14 hours to get down to a theoretical 30% SOC.

Any recommendations on a suitable load I...
Forum: Electrical: Batteries, Generators & Solar 23-03-2010, 09:11
Replies: 395
Views: 132,890
Posted By Tinkerer007
I got the MiniBMS installed (wires everywhere, I...

I got the MiniBMS installed (wires everywhere, I have to figure out a good solution to package this up), and started charging.

I started with a car battery charger that got the battery from 13.1 V...
Forum: Electrical: Batteries, Generators & Solar 18-03-2010, 14:10
Replies: 395
Views: 132,890
Posted By Tinkerer007
Lots of good information in this thread. Thank...

Lots of good information in this thread. Thank you.

I ordered 4 200 AH cells from EVComponents in February. They arrived last week, at which time I ordered the Mini BMS from Electric1, which...
Showing results 1 to 24 of 24

 
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