Battery choice help.

S.Claus

S.Claus

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Last edited:
S.Claus said:
What’s the difference between these batteries and what makes one better then the other ? I have a inverter with 4 gel batteries that last a solid 20min during loadshedding.

1. https://www.communica.co.za/products/batt-13v218-li-ion-bln

2. https://www.communica.co.za/products/batt-48v74ac-li-ion-pyl

3. https://www.communica.co.za/products/batt-48v50a-li-ion-dyn
Click to expand...
1. Overpriced 12V battery (Can get a 12V 200Ah mecer LFP for R8k or hubble s-100 for R5k) - Need 4 for 48V - No comms cable
2. Mainstream 0.5C LFP 1.75kW power output
3. Mainstream 0.5C LFP 1.2kW power output

Hubble AM-2 1C NFC 5.5kw power output

EDIT: Please can you send the gels this way.
 
Last edited:
S.Claus said:
What’s the difference between these batteries and what makes one better then the other ? I have a inverter with 4 gel batteries that last a solid 20min during loadshedding.

1. https://www.communica.co.za/products/batt-13v218-li-ion-bln

2. https://www.communica.co.za/products/batt-48v74ac-li-ion-pyl

3. https://www.communica.co.za/products/batt-48v50a-li-ion-dyn
Click to expand...
What inverter? If it's 48V and you go for the Blue Nova you will pay a whooping R94600 for 10.6kWh, don't fall for a scam.
 
wingnut771 said:
1. Overpriced 12V battery (Can get a 12V 200Ah mecer LFP for R8k or hubble s-100 for R5k) - Need 4 for 48V - No comms cable
2. Mainstream 0.5C LFP 1.75kW power output
3. Mainstream 0.5C LFP 1.2kW power output

Hubble AM-2 1C NFC 5.5kw power output

EDIT: Please can you send the gels this way.
Click to expand...
So which battery would you get at Communica ?

Edit: I have a deal with my electrician so he gives me discount for the old batteries in exchange.
 
S.Claus said:
So which battery would you get at Communica ?

Edit: I have a deal with my electrician so he gives me discount for the old batteries in exchange.
Click to expand...
None as you would need more than one to boil a kettle.

I would get a 5.5kW AM-2 for R25k from the powerforum store which can boil a kettle.
 
wingnut771 said:
None as you would need more than one to boil a kettle.

I would get a 5.5kW AM-2 for R25k from the powerforum store which can boil a kettle.
Click to expand...
I want to buy 4x batteries but just confused on what I get and which provides the best value for money.
 
S.Claus said:
I want to buy 4x batteries but just confused on what I get and which provides the best value for money.
Click to expand...
What capacity gels do you have now?

EDIT: If it's just a straight swap-out I would go for 4 of these which will have around 4.8kWh capacity.
www.geewiz.co.za

Hubble S-100A 1.2kWh 12V 100Ah Lithium Ion LiFePO4 Battery (FIRST LIFE CELLS) 3500 Cycles

The Hubble S Series is a standalone li-ion LiFePO4 battery. These lithium batteries are in the form factor of traditional lead-acid/agm/gel batteries (slightly SMALLER than a standard 100ah lead acid type battery). NB - Please ensure you can set your inverter CUT OFF voltage to 12.0V, else the...
www.geewiz.co.za www.geewiz.co.za
 
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wingnut771 said:
What capacity gels do you have now?

EDIT: If it's just a straight swap-out I would go for 4 of these which will have around 4.8kWh capacity.
www.geewiz.co.za

Hubble S-100A 1.2kWh 12V 100Ah Lithium Ion LiFePO4 Battery (FIRST LIFE CELLS) 3500 Cycles

The Hubble S Series is a standalone li-ion LiFePO4 battery. These lithium batteries are in the form factor of traditional lead-acid/agm/gel batteries (slightly SMALLER than a standard 100ah lead acid type battery). NB - Please ensure you can set your inverter CUT OFF voltage to 12.0V, else the...
www.geewiz.co.za www.geewiz.co.za
Click to expand...
Forbatt 12V200AH
DuracellBunny said:
Got the model of it?
Click to expand...
Growatt SPF 5000 ES
 
Jladan said:
Where does one find such a centre and do they take old alarm and gate batteries ?
Click to expand...
lead in batteries is worth a fair bit
Was 7 bux a kilo a few years ago, not sure what it is worth now
 
S.Claus said:
Forbatt 12V200AH

Growatt SPF 5000 ES
Click to expand...
4 x hubble S-100's will have the same usable capacity as your 200Ah gels, as you can use 100% of S-100's capacity instead of 50% with the gels. Disadvantage is with LFP the voltage curve is very flat so is hard to gauge how much capacity is left without a comms cable to the inverter which this setup doesn't provide, but is not a problem if you ask me, just set cut-off to 11V and charge current to 50A. Advantage is you don't have to redesign your layout.

For similar money you can get the am-2 as suggested above which is 5.5kWh vs 4.8kWh with the above setup, then you can connect a comms cable so your inverter can control the BMS. It just bolts onto the wall.
 
wingnut771 said:
4 x hubble S-100's will have the same usable capacity as your 200Ah gels, as you can use 100% of S-100's capacity instead of 50% with the gels. Disadvantage is with LFP the voltage curve is very flat so is hard to gauge how much capacity is left without a comms cable to the inverter which this setup doesn't provide, but is not a problem if you ask me, just set cut-off to 11V and charge current to 50A. Advantage is you don't have to redesign your layout.

For similar money you can get the am-2 as suggested above which is 5.5kWh vs 4.8kWh with the above setup, then you can connect a comms cable so your inverter can control the BMS. It just bolts onto the wall.
Click to expand...
With the Hubble AM-2 do you think I need more then 1 ?
 
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