for detailed description, see the root project https://workspace.circuitmaker.com/Projects/Details/Craig-Peacock-4/LT8490-Buck-Boost-Multi-Chemistry-Battery-Charger-with-MPPT

Major modifications:

RSNESE1 (R1) = 0.005 Ohm  --> IIN(MAX) = 10.1A

RSEINSE2 (R2) = 0.005 Ohm --> IOUT(MAX) = 9.94A, IOUT(MAXS0) = 4.96A

RIMON_OUT (R29) = 48.7k

RIOW (R25) = 48.7k

for a 7S litium battery pack with maximum 4.057V per cell

or a 8s LiFe battery with maximum 3.55V per cell

Target VS2 = 28.4V

RFBOUT1 (R21) = 487k

RFBOUT2 (R26) = 20k

RDAC01 (R23) = 28k

RDAC02 (R24) = 107k

CDACO (C26) = 68NnF

Hardware modification:

board size is now 68 x 94 mm

mounting hole distances are 60 x 80 mm

mounting hole diameter are 3.1 mm

all parts ara available from digikey (price per unit ~€43 4.1.2018)