[RE-wrenches] kilovault 2400 HLX Lithium Battery Charging.....

[Darryl Thayer]

I hope I am responding correctly.  Each battery has a built-in circuit that
is called a top balancer.  When a cell in the battery reaches full charge
the circuit bypasses that cell with a top balance current making the whole
battery drop to that top balance current.  any battery connected in series
with that battery is forced to that current, such that it will have to
charge at the top balance current of the first battery to go to top balance
current.  best thing is to use a 48 volt lithium battery.  If you must use
these batteries use a good battery balancer, Victron is the best but still
not as a 48 volt battery.

On Wed, Dec 31, 2025 at 12:01 PM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

>
> Hi jim
>
> As you have 4 battereis in series, you should use balancing devices
> between them. The kilovaukt are very susceptible to getting out of balance
> between batteries.
>
> I had to work with a customer to fix his kilovault battereis. Numerous
> failures which was traced back to broken balancers.
>
> Victron make good ones.
>
> Jay
>
>
> > On Dec 30, 2025, at 9:39 PM, Jim Gowdy via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
> >
> > 
> > Does anyone have any experience with the Kilovault 2400 HLX 12v
> batteries.  I have a customer that wants to hook up a generator to his
> system and go over programming on an outback system.  I looked up this
> battery company and they don't have a website and their phone number didn't
> work so I assume the company is out of business.  I found a manual and the
> specs state that the bulk charge time is 2 minutes per battery I assume.
> I'm still a rookie and learning the proper charging parameters for
> different kinds of batteries so any help would be appreciated.  He hasn't
> given me much info, but apparently there are......
> > -8 batteries on a 48v system.  I assume the batteries are 2 strings of 4
> batteries.
> >
> > -Outback FXR 30/48 inverter
> >
> > -Outback FM Charge Controller.  He didn't say what size, but the
> assumption is 80a
> >
> > -MATE 3 controller
> >
> > -Solar....not known at the moment
> >
> > -Gasoline powered 120v output portable generator.....KW is unknown at
> the moment.  *I don't like this, but it's what the customer bought.
> >
> >
> > --
> > Jim with Gowdy Electric
> > Cambria, Ca 93428
> > business  805 927 2630
> > cell  805 975 5279
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