BYD Shark PHEV - transparent vehicle showing driveline

Not many details around the BYD Shark PHEV, but worth sharing what we know. The image shows a rectangular battery pack, typical of the BYD Blade design. This uniform shape keeps the cost low, but will challenge the packaging of the driveline and in particular propshafts. A north-south configured 1.5-litre turbocharged four-cylinder petrol engine and … Read more

Zeekr 007 LFP

Zeekr 007 Golden Brick Battery

The Zeekr 007 LFP battery is also described as the “Golden Brick Battery” pack. It appears the gold colour comes from a wrap that is used to electrically isolate the pack. That sounds very much like Kapton tape. Specifications Metrics These numbers are based on images, a few data points and a few assumptions. Please … Read more

CATL 46145 LFP

CATL 46145 LFP battery cell specifications

Not many details of the CATL 46145 LFP cell as yet. However, it’s worth sharing as we know already that CATL are lined up to supply 46xx cells for the 2025 BMW Gen6 packs. The specifications appear in this CATL document that lists the basic parameters for their UPS Battery Rack System [1]. This post … Read more

Rimac SineStack

Rimac SineStack grid storage system

This is Rimac’s first move into the stationary energy storage market, their first product is the SineStack. The interesting aspects of this design is the integrated inverter, active balancing and the ability to switch the load on a module basis to extend the working lifetime. Specifications This post has been built based on the support … Read more


BYD FC4680 LFP cell

The BYD FC4680P cell is a Lithium Iron Phosphate chemistry in the Tesla 4680 cell format. 4680 => 46mm in diameter and 80mm high A small plug in the top is described as an “explosion proof valve”. Independently measured values shown in bold Key features Dimensions Safety Data Data as shown on manufacturers specification sheet. … Read more

Mastering 12V Lithium Iron Phosphate (LiFePO4) Batteries

12V LFP battery pack

Unravelling Benefits, Limitations, and Optimal Operating Voltage for Enhanced Energy Storage, by Christopher Autey In the ever-evolving landscape of renewable energy and advanced energy storage solutions, Lithium Iron Phosphate (LiFePO4) batteries have gained widespread acclaim for their exceptional performance, reliability, and versatility. Among these, the 12V LiFePO4 batteries have emerged as a popular choice for … Read more

Lithium Manganese Iron Phosphate


Abbreviated as LMFP, Lithium Manganese Iron Phosphate brings a lot of the advantages of LFP and improves on the energy density. Lithium Manganese Iron Phosphate (LMFP) battery uses a highly stable olivine crystal structure, similar to LFP as a material of cathode and graphite as a material of anode. A general formula of LMFP battery is LiMnyFe1−yPO4 … Read more