Originally published at: New Product: The 4S 15.6Ah Lithium-ion Battery for the BlueROV2! - Blue Robotics
Unlike most of our products, this is one we never planned to make! We have the original lithium ion battery (with black wrapper) that does a perfectly great job of powering the BlueROV2 through long and tough missions. Those batteries are powering thousands of ROVs around the world!
So why a new battery, you ask? If you haven’t noticed, that original battery has been out of stock for a few months. That’s due to some craziness in the world’s supply chains right now – alongside the electronic chip shortages that have crippled many factories, there is a shortage of lithium ion battery cells. This problem has been getting worse and worse for us since 2020. At first, we were still able to get small quantities of Samsung 30Q cells, but at more than double the original price. We bought up all the cells we could find at that price, but now, we’re not able to get them at all, so we’ve had to pursue other options!
The new battery (left, white) and the original battery (right, black).
The new 4S 15.6Ah Lithium Ion Battery (with a white wrapper) is nearly identical to our original battery, but it uses a different cell: the Molicell P26A. This is one of the few high-discharge cells we’re still able to get at the moment. The resulting battery pack has the same discharge rating as the original battery, but a slightly lower capacity of 15.6Ah versus 18Ah (13% less capacity). The pack is UN38.3 certified for shipment and CE marked.
We tested this battery extensively in the lab and the field and we can confidently say that it’s a great fit for the BlueROV2. It can be used in exactly the same manner, including the same charger and charge settings. The only thing to keep in mind is that you should never connect batteries of different capacities in parallel, therefore never connect these batteries with the original black batteries in a parallel circuit!
Like our original battery, this battery is subject to international shipping restrictions and can only be shipped directly to certain countries. Many of our distributors around the world will have stock available in the future. Please see the product page for more details on shipping and availability in your country.
That’s all for today! Stay tuned for more updates in the future.