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Recently got some advertising for this new local company selling LiFePo4 batteries. The prices look almost too cheap. Community thoughts? Local supplier would be amazing for Western Canadians...

I was just cold emailed from a company called SodiumWatt which seems to be a trademark of Shenzhen Han hailong science and Technology Co., Ltd. After some conversation they are going to send me 3 sample batteries in a standard 150*99*99 case. 12V 15AH. Mainly we are interested in the cold...

https://graphenergy.ca/products/ I am not able to disclose the capacity but its significantly more than typical super caps. Any idea what chemistry would be inside?

I know there is plenty of smart people here. Tell me why this is a poor design. https://www.halcium.com/ From what I see: Pros: - no exposed blades means its safe around boat sails. Hoist and forget it. Cons: - Fixed sized makes PITA to store. - Efficiency will be less than traditional systems.

Looking to create a 2x2 power bank with Telsa 24V modules. 2 series by 2 parallel. Each module is 74p6s so that gives me a total of 148p12s. 48V system will be powering a 20kW (peak) BLDC motor and a variety of accessories. I want to use these cells for their compact and weight savings compared...

Hi folks, Firstly, I am aware that no advertising is allowed on this site. I will refrain from posting any links or spam to our proposed product. We don't have a company or a product at this time. Being a shill is not my intent, Scarily, i am looking for you opinions to make a great product...

https://www.electriccarpartscompany.com/48v-35a-hw-lithium-battery-charger Anyone know where i can get a datasheet for this charger? I would like to get information from the CANBUS and if it can be configured on the fly.