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Re: Blind battery refill

Discussion Board - 3 hours 26 min ago
Lifer you may receive more accurate advice from other forumites, all I did was use the battery (to be watered) itself for the power supply.

Experimentation may well produce something that solves your problem.

Good luck.

Dave

Re: Blind battery refill

Discussion Board - 3 hours 34 min ago
(sorry, we are posting simultaneously)

Thanks for the link! That could solve my problem, indeed. But like @Flux has suggested in that thread (reply #63) I was thinking of using two electrodes and an opamp to check for conductivity. A portable circuit (...

Re: Blind battery refill

Discussion Board - 3 hours 36 min ago
I am not sure if my battery nylon plug tester survives. I will need to check my scrap box tomorrow - Saturday and will post if I find anything. This was about 6 years ago.

From memory I preset the water level depth probe to suit the battery - it was no...

Re: Blind battery refill

Discussion Board - 3 hours 43 min ago
Quote from: David HK on Today at 02:55:51 AMFrom memory, I recall a nylon plug with a stainless steel pipe for injecting the electrolyte into a cell. Also, on this plug, were contacts to illuminate a green LED when it...

Re: Blind battery refill

Discussion Board - 3 hours 46 min ago
Just found the circuit diagram.

Its a bmp file  - not sure if it will show,

Dave

Re: Blind battery refill

Discussion Board - 3 hours 54 min ago
According to a battery manufacturer (HAWKER), there have to be an empty space (3 mm) between the electrolyte maximum level and the vent tube bottom edge.

Re: Blind battery refill

Discussion Board - 3 hours 55 min ago
I worked all this out on this website years ago.

Ghurd helped me. I have just tried researching and cannot trace anything. I have also checked my old PCB Express files and cannot find the circuit diagram.

From memory, I recall a nylon plug with a stain...

Re: powerjack charger overvoltage

Discussion Board - 5 hours 13 min ago
Are you off Grid, or grid tied?

The PowerJack boards give sufficient criteria for the SMA to function.

The PowerJack output voltage normally climbs high when the batteries are full, as the PowerJack is just a dumb charger, ie it can not control or do a...

Re: Blind battery refill

Discussion Board - 5 hours 26 min ago
Quote from: thirteen on February 11, 2016, 07:17:16 PMDrill a hole above each cell  big enough to see its needs  and then cover it with a sheet of plastic or small piece of plywood. 13
Unfortunatelly, I have batteries o...

Re: Bambie almost killed me

Discussion Board - 7 hours 48 min ago
That's good judgement, keeping them sprays to human zones away from innocent wildlife.  I like the wildlife even if I'm far from a tree hugger.  Doing things like using 1-3 foot wide perimeter sprays around the house, and perpendicularly up the wall fr...

Re: Blind battery refill

Discussion Board - Thu, 02/11/2016 - 20:17
Drill a hole above each cell  big enough to see its needs  and then cover it with a sheet of plastic or small piece of plywood. 13

Re: powerjack charger overvoltage

Discussion Board - Thu, 02/11/2016 - 17:45
I actually tried to use the PJ build-in charger and this shut off at too high AC voltage from the grid-tie.

Yesterday I tried it the other way, AC coupling of the SMA grid tie to the output of the PJ, works great. At least up to 2.5kW grid tie.
As th...

Re: Bambie almost killed me

Discussion Board - Thu, 02/11/2016 - 15:20
Matt
I'm with you 100% on that. I spray a little pyrethrin on my boots and the cuffs of my jeans only.
I'd love to put out a bunch of poison mouse baits and maybe put a little dent in the population, but i'm sure that would be bad for any predators tha...

Re: Blind battery refill

Discussion Board - Thu, 02/11/2016 - 14:54
There are a couple of companies that make systems like this, mostly for bass boats that have 3 - 4 batteries stuffed into tight places. There are similar for golf carts.

https://flow-rite.com/battery-watering/marine-rv/qwik-fill

There are some vids on ...

Re: Blind battery refill

Discussion Board - Thu, 02/11/2016 - 14:29
I'm afraid of adding too much water. I need a more accurate procedure I believe.

Re: Blind battery refill

Discussion Board - Thu, 02/11/2016 - 13:58
a battery hygrometer with a flexible tube? (mine has a 3" rubber tube) - if you can't suck electrolyte up without air you need to add more water, sort of thing.

Re: powerjack charger overvoltage

Discussion Board - Thu, 02/11/2016 - 13:53
two thoughts:

1. a 10,000w powerjack as standard might struggle with 5kw continuous without a bigger transformer (see Oztules / clockmanFra Powerjack exploits) - their ratings are a bit optimistic and it may be struggling if you're pushing 5kw through ...

Blind battery refill

Discussion Board - Thu, 02/11/2016 - 13:52
I had to relocate my battery bank on a low height shelf. Everything was perfect until I had to do the regular maintenance (watering/level check).

As there's limited clearance (30-40 cm), it's very dificult to look inside each cell. Moreover, the elect...

Re: Bambie almost killed me

Discussion Board - Thu, 02/11/2016 - 12:23
Just don't use permithrin-derived sprays around birds or fish.  Their immune systems cannot handle them well.
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