Solis 5kW inverter with Puredrive Hybrid II batteries

[athlonoc]

Hi,

After a couple of years using these two in combination I've since been informed I should consider the lifespan of my batteries by lowering the amp in the settings menu.

 

I have 2 x 5kW Hybrid Puredrive II batteries. They have maximum 100A in which it states that's it's optimal rate. But do I need it set so high?

I suppose if I want maximum charge or discharge over a small time then maybe, but would it be more beneficial to set the charge rate to a lower amps setting?

 

As I charge my batteries overnight between the hours of 12:30 am and 5:30am I guess it would be better to charge during that whole period and use a lower Amp setting.

It currently has a DOC of 15% so I only ever charge 85% to get to maximum 100%. It's normally done in just over two hours but isn't it putting too much continuous stress on doing it that fast.

 

What settings do others use to preserve the life of their batteries or am I barking up the unnecessary tree? If I have 5 hours to charge say 85% of a 5kW battery then I guess I could set this much lower?

[Nickfromwales]

2 hours ago, athlonoc said:

Hi,

After a couple of years using these two in combination I've since been informed I should consider the lifespan of my batteries by lowering the amp in the settings menu.

 

I have 2 x 5kW Hybrid Puredrive II batteries. They have maximum 100A in which it states that's it's optimal rate. But do I need it set so high?

I suppose if I want maximum charge or discharge over a small time then maybe, but would it be more beneficial to set the charge rate to a lower amps setting?

 

As I charge my batteries overnight between the hours of 12:30 am and 5:30am I guess it would be better to charge during that whole period and use a lower Amp setting.

It currently has a DOC of 15% so I only ever charge 85% to get to maximum 100%. It's normally done in just over two hours but isn't it putting too much continuous stress on doing it that fast.

 

What settings do others use to preserve the life of their batteries or am I barking up the unnecessary tree? If I have 5 hours to charge say 85% of a 5kW battery then I guess I could set this much lower?

Not sure if you have a way to monitor the temps of the batteries, but trickle / slow charging is always favourable. 
 

I’d say drop the charge rate by 50% and see if that gets them topped up before 05.30. If it doesn’t, just add 5% and go again. 

[athlonoc]

Hi Nick,

 

Thanks for the idea, that sounds like a plan. 

[SteamyTea]

8 hours ago, athlonoc said:

They have maximum 100A in which it states that's it's optimal rate

Is that correct, it would shorten the life of your main fuse.

 

[Nickfromwales]

55 minutes ago, SteamyTea said:

Is that correct, it would shorten the life of your main fuse.

 

100a D/C eg that's the charge current after rectification, is my guess.

[SteamyTea]

4 minutes ago, Nickfromwales said:

100a D/C eg that's the charge current after rectification, is my guess.

Yes, if the batteries are 48V, then it is only 5 kW (ish).

 

(been a hard week as I did an overnighter for the first time in years)

[Nickfromwales]

Just now, SteamyTea said:

Yes, if the batteries are 48V, then it is only 5 kW (ish).

 

(been a hard week as I did an overnighter for the first time in years)

Been on a few 'long' days myself the last few weeks...... Just about everything hurts now...... Joy.