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Using the 3.7V nominal voltage for a lithium cell, that puts the Blade Battery at 10kWh - I think the price provided is for over the entire life of the battery

Using the 3.7V nominal voltage for a lithium cell, that puts the Blade Battery at 10kWh - I think the price provided is for over the entire life of the battery which works out to 10000x10kWh*$0.014/10kWh, which is $140 per kWh. Not expensive, but not particularly remarkable considering modern pack prices.

onraglanroad 1y ago
That calculation doesn't make any sense. I mean you both multiply and divide by 10kWh, so those cancel out and you end up with just $ (not "per" anything). What's that supposed to be the price of? I guess if you have 10,000 cycles and one kWh costs $0.014, then that's just the cost of 10,000 kWh.
- torginus 1y ago
  I calculated the cost of the pack from the data at $140 for 1kWh. I guess I shouldn't have included the kWh in the divisor but (10000x3.7V2710Ah$0.014) <- total cost of the pack / 10 <- normalize to 1kWh = $140
  - mchusma 1y ago
    This makes more sense than battery costs dropping 99%. I was confused by op, and wish it were true. It’s more like 10x solar than 1/10th solar.
abdullahkhalids 1y ago
Another grid-scale Chinese battery got bids for ~US$66 last year [1]. So this is twice as expected but maybe the other battery won't have as many cycles. [1] https://reneweconomy.com.au/mind-blowing-battery-cell-prices-plunge-in-chinas-biggest-energy-storage-auction/ https://reneweconomy.com.au/mind-blowing-battery-cell-prices...
- toomuchtodo 1y ago
  A recent (July 2025) winning bid was $US51.59/kWh. https://reneweconomy.com.au/watershed-moment-big-battery-storage-prices-hit-record-low-in-huge-china-auction/ https://reneweconomy.com.au/watershed-moment-big-battery-sto... > The latest auction in China offered 25 gigawatt hours of capacity for lithium iron phosphate (LFP) batteries over a range of storage periods – 1 hour, 2 hour and 4 hours – and the results (the first time they have been broken down on storage duration) have stunned even seasoned onlookers. The knockout price was a bid of $US51.59/kWh for a four hour battery (the average was $US59/kWh), which Energy Storage News says represents a 30 per cent drop from 2024 levels, and others side was a 15 per cent fall from recent record lows. It would be exciting if the price continues to decline 15-30 percent per year. Unsure if that’s sustainable at current manufacturing and learning rates, but exciting.
  - Tepix 1y ago
    Aren‘t we close to getting much cheaper batteries with Sodium? https://www.geeky-gadgets.com/catl-sodium-ion-battery-packs/ https://www.geeky-gadgets.com/catl-sodium-ion-battery-packs/
    - abdullahkhalids 1y ago
      There are always tall claims. The only real check on claimed prices is when the product is sold on the market. So wait for installations on this one too.
      - toomuchtodo 1y ago
        Some pricing within this article on large scale sodium ion grid forming battery storage in China. https://www.ess-news.com/2025/06/03/china-launches-worlds-first-grid-forming-sodium-ion-battery-storage-plant/ https://www.ess-news.com/2025/06/03/china-launches-worlds-fi...

onraglanroad 1y ago

That calculation doesn't make any sense. I mean you both multiply and divide by 10kWh, so those cancel out and you end up with just $ (not "per" anything). What's that supposed to be the price of? I guess if you have 10,000 cycles and one kWh costs $0.014, then that's just the cost of 10,000 kWh.

torginus 1y ago
I calculated the cost of the pack from the data at $140 for 1kWh. I guess I shouldn't have included the kWh in the divisor but (10000x3.7V2710Ah$0.014) <- total cost of the pack / 10 <- normalize to 1kWh = $140
- mchusma 1y ago
  This makes more sense than battery costs dropping 99%. I was confused by op, and wish it were true. It’s more like 10x solar than 1/10th solar.

abdullahkhalids 1y ago

Another grid-scale Chinese battery got bids for ~US$66 last year [1]. So this is twice as expected but maybe the other battery won't have as many cycles. [1] https://reneweconomy.com.au/mind-blowing-battery-cell-prices-plunge-in-chinas-biggest-energy-storage-auction/ https://reneweconomy.com.au/mind-blowing-battery-cell-prices...

toomuchtodo 1y ago
A recent (July 2025) winning bid was $US51.59/kWh. https://reneweconomy.com.au/watershed-moment-big-battery-storage-prices-hit-record-low-in-huge-china-auction/ https://reneweconomy.com.au/watershed-moment-big-battery-sto... > The latest auction in China offered 25 gigawatt hours of capacity for lithium iron phosphate (LFP) batteries over a range of storage periods – 1 hour, 2 hour and 4 hours – and the results (the first time they have been broken down on storage duration) have stunned even seasoned onlookers. The knockout price was a bid of $US51.59/kWh for a four hour battery (the average was $US59/kWh), which Energy Storage News says represents a 30 per cent drop from 2024 levels, and others side was a 15 per cent fall from recent record lows. It would be exciting if the price continues to decline 15-30 percent per year. Unsure if that’s sustainable at current manufacturing and learning rates, but exciting.
- Tepix 1y ago
  Aren‘t we close to getting much cheaper batteries with Sodium? https://www.geeky-gadgets.com/catl-sodium-ion-battery-packs/ https://www.geeky-gadgets.com/catl-sodium-ion-battery-packs/
  - abdullahkhalids 1y ago
    There are always tall claims. The only real check on claimed prices is when the product is sold on the market. So wait for installations on this one too.
    - toomuchtodo 1y ago
      Some pricing within this article on large scale sodium ion grid forming battery storage in China. https://www.ess-news.com/2025/06/03/china-launches-worlds-first-grid-forming-sodium-ion-battery-storage-plant/ https://www.ess-news.com/2025/06/03/china-launches-worlds-fi...