# Lead-acid batteries and Lithium iron phosphate batteries

Their prices have moved together.

Source page: https://www.materialinsights.org/links/lead-acid-batteries-and-lithium-iron-phosphate-batteries/

[Lead-acid batteries](https://www.materialinsights.org/energy/e_lead_acid/) (energy) and [Lithium iron phosphate batteries](https://www.materialinsights.org/energy/e_li_lfp/) (energy): 1 relationship.

## How they are linked

### 1. Price link: substitute

*Cost and price · Strong · Both ways*

LFP is replacing lead-acid in backup power, telecom sites and some starter batteries. The two battery indices share US factory cost trends, correlating at 0.72 for yearly moves, but only at 0.10 for monthly moves.

- **0.10** monthly change correlation
- **0.72** 12-month change correlation
- **0.96** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.