Navitron Renewable Energy and Sustainability Forum

Energy/Electricity Storage and Use/Grid Connection => Off-Grid, Batteries & Inverters => Topic started by: billi on November 25, 2014, 11:40:41 AM



Title: battery capacity , volt and waterlevel
Post by: billi on November 25, 2014, 11:40:41 AM
Hi

I just topped up my  2x12 cell  Forklift battery  a few days back

I did  wait  a bit too long   so needed 30 l   and   the lead plates were exposed  about 2.5 cm (1 Inch  ;D)

After  filling up , i noticed , that the battery took a lot more AH  to reach full Volt (charge)

But  on the other-hand   ,   it seems  that capacity has not increased  :P     

I know that  that electrolyte is slightly heavier than water    ,  i guess i have to equalize charge the battery to mix   , after  filling as well  bike:

Any others  having strange behavior  after topping up ?

Tankx

Billi


Title: Re: battery capacity , volt and waterlevel
Post by: camillitech on November 25, 2014, 01:05:58 PM
I topped up a friends system last Sunday that needed a similar amount due to a charge controller failing. Usually they take a couple of liters every fortnight but on this occasion it was almost 25 :o The voltage dropped from over 30 to 28.9 as soon as they'd had their drink. 


Title: Re: battery capacity , volt and waterlevel
Post by: billi on November 25, 2014, 03:22:05 PM
Ok ,   sounds familiar  then

I guess i have to activate my generator , the first time of the year    to help the PV  for  an equalizing charge


Title: Re: battery capacity , volt and waterlevel
Post by: Billy on November 25, 2014, 05:56:28 PM
Billi, Billy here,

I am shocked and disappointed, exposing your plates like that. :fight

What is this thing called "Checking water in batteries" ;D

Only once every few years for me with Hydro Caps.   exhappy:


Title: Re: battery capacity , volt and waterlevel
Post by: billi on November 25, 2014, 06:10:04 PM
Billy,Billi here  ;D 

 True Billy , certainly  hydro-caps  and electrolyte air bubbling thingy   , in my next battery life