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I’m surprised the regulations forbid lead-acid in favour of lithium. Lead-acid can emit hydrogen during charging which is easy to get rid of with good ventilat
by Nextgrid 4y ago
I’m surprised the regulations forbid lead-acid in favour of lithium.
Lead-acid can emit hydrogen during charging which is easy to get rid of with good ventilation. Worst-case scenario it produces a single explosion, hopefully in a utility room with not too much risk to life.
Lithium in contrast will give you very hot, unextinguishable fire.
- SigmundA 4y agoVRLA lead acid batteries should not vent unless overcharged, they are used in UPS's everywhere, not sure what the permitting issue would be. Lithium Iron batteries which are what's typically used in stationary backup are extremely safe and do not burn as hot compared to more unstable high energy density chemistries like NMC typically used in mobile applications. They are also relatively inexpensive and have extremely long lifespans if not used in extremely hot environments, we are talking 20 years to 80% capacity in a stand-by application.
- zardo 4y agoIt's so surprising I would bet the company has misunderstood the regulation.