Lead-Acid vs. Lithium Batteries: Which Are Best For Solar?
Here''s the summary: Lead-acid is a tried-and-true technology that costs less, but requires regular maintenance and doesn''t last as long. Lithium is a premium battery
Lead-acid batteries should only be run to 50% depth of discharge. Beyond that point, you risk negatively affecting their lifespan. In contrast, lithium batteries can handle deep discharges of 80% or more. This essentially means they feature a higher usable capacity. 3. Efficiency Lithium batteries are more efficient.
The best lithium battery chemistry for solar applications is Lithium Iron Phosphate, shorted to LiFePO4 or LFP batteries. This new technology lasts longer and can be put through deeper cycles. They also require no maintenance or venting, unlike lead-acid batteries.
The decision-making process is pretty much the same here. Lithium could be worth it to power an industrial site that sees heavy use. If you are powering basic monitoring equipment at a remote outpost, SLA will get the job done cheaper, and you still won't have to worry about maintenance visits.
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