April 24, 20233 yr Hi I bought these batteries for my brother to use on his inverter at home. He was using lead acid but I thought these would be better and last longer. Sadly the inverter doesn’t support LiFePO4 so we landed up buying gel instead. I kept the batteries to use on my dads growatt inverter but now we have decided to buy a 5kw instead so I have no use for them. There are two for sale.. would like to sell them as a pair. Item: Security-prod 100ah (1280w) LiFePO4 (drop in lead acid replacement) Age: bought in Feb, never used Price: R6000 each Payment Method Accepted: FNB GEO or cash Packaging: original Condition: Brand new Location: Johannesburg South Reason: not needed Shipping: none Collection: yes Edited April 24, 20233 yr by Derek Ramos
April 24, 20233 yr 7 minutes ago, Derek Ramos said: Hi I bought these batteries for my brother to use on his inverter at home. He was using lead acid but I thought these would be better and last longer. Sadly the inverter doesn’t support LiFePO4 so we landed up buying gel instead. I kept the batteries to use on my dads growatt inverter but now we have decided to buy a 5kw instead so I have no use for them. There are two for sale.. would like to sell them as a pair. Item: Security-prod 100ah (1280w) LiFePO4 (drop in lead acid replacement) Age: bought in Feb, never used Price: 6000 Payment Method Accepted: FNB GEO or cash Packaging: original Condition: Brand new Location: Johannesburg South Reason: not needed Shipping: none Collection: yes Hi Derek I am interested and sent you a PM with my details.
April 25, 20233 yr Author 3 hours ago, Zimnismoboy34 said: interested is it one unit ? or do you have two ? I have two available, R6000 each
May 3, 20233 yr @Derek Ramos, What is the brand/model of the inverter you tried to use the batteries on? You should be able to use the batteries with the inverter if it has a user setting. Set the inverter charge settings as: Bulk/boost voltage: 27.6V Float voltage: 27V Low Cut-off voltage: 22V High Cut-off voltage: 28.8V These settings are a bit more conservative to ensure the inverter does not cause the batteries to be switched off by the BMS.
May 4, 20233 yr Author 11 hours ago, DeonBez said: @Derek Ramos, What is the brand/model of the inverter you tried to use the batteries on? You should be able to use the batteries with the inverter if it has a user setting. Set the inverter charge settings as: Bulk/boost voltage: 27.6V Float voltage: 27V Low Cut-off voltage: 22V High Cut-off voltage: 28.8V These settings are a bit more conservative to ensure the inverter does not cause the batteries to be switched off by the BMS. It’s a PSS inverter. www.pss.co.za there’s not user settings, took the inverter to the supplier to check it out and that’s when they told me their inverters don’t work with lithium batteries. Now I’m just sitting with these batteries. I am considering buying another small inverter to use these batteries for my office but I don’t know which inverter would be best. Was thinking of maybe a 3kva growatt or something
May 4, 20233 yr 13 minutes ago, Derek Ramos said: It’s a PSS inverter. www.pss.co.za Which model? 15 minutes ago, Derek Ramos said: I am considering buying another small inverter to use these batteries for my office but I don’t know which inverter would be best. Was thinking of maybe a 3kva growatt or something Consider GeeWiz Axpert 3000VA (3000W) PURE Sine Wave is cost effective and works well (no affiliation 🙂)
May 4, 20233 yr Author 1 hour ago, DeonBez said: Which model? Consider GeeWiz Axpert 3000VA (3000W) PURE Sine Wave is cost effective and works well (no affiliation 🙂) https://pss.co.za/product/3000va-sh-series-inverter/ this is the one I wanted to use it with thanks I’ll check out the geewiz one
May 4, 20233 yr Author 1 hour ago, DeonBez said: Consider GeeWiz Axpert 3000VA (3000W) PURE Sine Wave is cost effective and works well (no affiliation 🙂) Why the geewiz and not the growatt or mecer. I run a sunsynk in my house so I don’t know anything about these smaller inverters
May 4, 20233 yr 3 hours ago, Derek Ramos said: Why the geewiz and not the growatt or mecer. Geewiz and Mecer are similar inverters both of Axpert type (Voltronic power) but branded. Some rated as 3000VA / 3000W and other 3000VA / 2400W. Growatt seems to be more expensive. Choose one which is most cost effective for your use. Edited May 4, 20233 yr by DeonBez
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