Numax 110 LB

mcbainia · Post by **mcbainia** » Fri Feb 25, 2011 9:38 pm

evening folks,

Can anyone help me with the above mentioned LB? It has a charge idicator on it that says that if it's green it's ok, black it needs charged and White if it needs replacing. I have just got this battery and at present the indicator is black. Should the indicator light up green when it's charged? If I shine a torch into the indicator it is clearly green but just looking at it without the torch it's black. I've put it on charge and my charger says that it is charging....should I be looking for a bright green light or do I need to shine a light into it to see what colour it is ?

Post by **g8dhe** » Fri Feb 25, 2011 9:57 pm

Its just a rotating float, its not an LED, so yes you will need to shine a light on it it to see!

mcbainia · Post by **mcbainia** » Fri Feb 25, 2011 9:59 pm

So, I'm shining a light into it and its green but my battery charger is saying that it is charging....should I charge it or not ?

Tanks for your reply by the way!

MAZABON · Post by **MAZABON** » Fri Feb 25, 2011 10:07 pm

normally if a battery is new they are supplied in a charged state.

found this it might help

The function of the Magic Eye® state of charge battery indicator is based on the specific gravity of the sulfuric acid or electrolyte. When a battery is charging, the change in the density of the acid is a little delayed as compared to the actual state of charge of the battery. However, the battery indicator should show green once the battery is back to 100% state of charge. There may be several reasons as to why it is not showing green:
1. If the battery was allowed to remain in the dis-charged state for a great length of time, the battery may in fact be bad and the battery indicator will not show green because the electrolyte has not reached the proper specific gravity. The specific gravity of the electrolyte is the most accuarate method of measuring state of charge.
2. The acid in the battery is "stratified" meaning that the heavier acid has sunk to the bottom and the lighter water is floating near the top. This happens with batteries that have sat for a long time in the discharged state. Normally, re-charging will stir the electrolyte make it more homogenious.
3. There may be a small piece of battery separator material preventing the green ball from floating up.
The best thing to do is gently rock the battery back and forth. This will mix the electrolyte and will most likely free the green ball to float up "IF" the specific gravity of the acid is dense enough.
Keep in mind that even though the Magic Eye®is located in only 1 of 6 cells, testing conducted by a major OE car company proved that the battery indicator accurately indicates the state of charge of the entire battery.

mcbainia · Post by **mcbainia** » Fri Feb 25, 2011 10:10 pm

Great, thanks for your help. I'll take it off charge in case I over charge it...if that is indeed something that you can do?

MAZABON · Post by **MAZABON** » Fri Feb 25, 2011 10:13 pm

most chargers have a safety cut out, so hopefully you should not have done any damage

mcbainia · Post by **mcbainia** » Fri Feb 25, 2011 10:15 pm

Wicked!! I'll go and stick it in the van and check the voltage on it !!

mcbainia · Post by **mcbainia** » Fri Feb 25, 2011 10:32 pm

That's it in and it's sitting at 12.8v....perfect.

Thanks for your help folks

Numax 110 LB

Numax 110 LB

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