ProtoDAC TDA1387 X8 project

[hifinet]

It's pretty simple, and you can easily build it yourself. It's the cheapest way to try LifePO4. Just a bit of a hassle required to remove and recharge batteries. Also, some attention is required. If the batteries become over discharged, they are permanently ruined. 3.0V per cell is the discharge limit. There is a lower fire hazard with LifePO4 compared to other lithium batteries. The LT1963 will limit current to 1.5A.