January 23, 20233 yr Hello, I want to ask the forum if anyone is familiar with the company BSI Renew and the products that they offer. They seem to be an arm of BSI, who is contracted to do most of the battery related services for our telecoms infrastructure. Think backup batteries at cellphone towers and all that. They sell "refurbished" batteries and a very very competitive price. Alongside that they offer a 1-year warranty on their batteries which makes the entire deal quite attractive. I have actually purchased from them in the past, I have 2x 180Ah Monbat batteries running in my home-office UPS, that can keep my equipment running for 12h+. During a normal loadshedding the battery level rarely dips below 80%. I've had these batteries now for probably 4-5 months and so far, I'm quite happy with their performance. I'm now considering getting more of their batteries and upgrading my office UPS to a whole-home UPS to keep the lights, fridges and so on alive. My question to the forum is if anyone else has experience with their batteries, and maybe some longer term stats for the batteries? How much lifetime can I expect, how many cycles, etc etc. I don't want something that'll last me 12 months then completely drop off a cliff. My use-case for these batteries do not involve daily cycling (loadshedding excluded), as I want to use them for backup, and not to keep the house running when the sun does not shine. For something that'll be fully cycled every day (>50% DoD) I reckon lithium will be the better option, with it's cycle life measured in the 1000s.
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