4 ms·
Lead acid has far fewer cycles (500 typical) than LFP (5000 typical) so if you look at the prices per kWh out from the battery LFP is way cheaper (and lighter).
by guerby 5y ago
Lead acid has far fewer cycles (500 typical) than LFP (5000 typical) so if you look at the prices per kWh out from the battery LFP is way cheaper (and lighter).
Even $250 per kWh of LFP storage with 5000 cycles means 5 cents per kWh out of the battery.
And in reality the cost is even less since after 5000 cycles the battery will still have 70-80% of original capacity and can keep going for more cycles.
- 2Gkashmiri 5y agohttps://www.amazon.in/Luminous-12150H-Solar-Battery-Multicolour/dp/B075SRCS7V/ref=pd_rhf_dp_s_pop_multi_srecs_sabr_3/262-0302102-4896219 https://www.amazon.in/Luminous-12150H-Solar-Battery-Multicol... uh, this one says Long cycles (1500 @80% DOD, 5000 @ 20% DOD); AH efficiency > 90%; WH efficiency > 80% sure 1500 is not 5000 but its also not 500. second, it says 60 months warranty which they mean "replacement" so if i exhaust the 1500 in 5 years,they would replace it at no extra charge, suppose it happens after 4 years. the new batteries would give me another 4 ~ years so in total i would get around 5+4~5 years life out of paying just once. i'm not saying LFP is bad, just expensive.
- guerby 5y agoPrice is 215 USD for 12x150 1.8 kWh (and 61 kg) looks very expensive to me for a very short lifetime (5000 at 20% DoD means 1000 cycle). (I assume shipping is free or do you have to pay it for warranty ?) I paid $100/kWh for LFP 3.2V 280Ah cells delivered from China to my country in Europe.
- 2Gkashmiri 5y agoi can't seem to reply to your last comment so i am writing it here. these are amazon prices on https://www.amazon.in/Luminous-12150H-Solar-Battery-Multicolour/dp/B075SRCS7V https://www.amazon.in/Luminous-12150H-Solar-Battery-Multicol... i can get 200ah for this price for same 5 years warranty included and no shipping. its sold at the shop on the other block so shipping and warranty is included. oh, btw you cant really buy stuff from china to india. the borders are either closed or you have to pay 40% customs so that is out of question. the reason why i think LFP at 275 is expensive , again because the replacement before 5 years gives me another 5 years without paying again so essentially i would be getting for $1500, 12 * 200 * 16 and sure its bulky AF but i do not have to drive more than a mile for getting it to home so yeah