Now you can have the ultimate battery at an affordable price. 
Build your own battery with this all-inclusive DIY kit
 
What's inside the box?  

- 8 x 100AH 3.2v LiFePO4 New A Grade Cells  1200wh
  * 7000 Cycles @ 100% DoD @ 0.5C @ 25°c until 70%(70AH) Capacity retention remains
- 5 x  Connector sets ( 3x Long 2x Short )
- LBSA/DALY 120a 4s BMS
- Some extra nuts and bolts that you will need
- 2x1m black+ 2x1m red 8AWG fine stranded tin coated copper wire
- All cables are crimped with the required tin coated copper lugs