2001-2003 Honda TRX500FA Factory Service Manual, Page 322Get this manual
BATIERY CHARGING SYSTEM BAITERYTESTING Refer the instructions in he Ope rat io anual or he recommended battery ester fo detail abo ut the batte ry estin The reco me nded batt ery teste ut "toed" he battery so th at he actu al batt ery con di io of th lo ad can be easur ed
Recommende battery tester
BM 210AH, BM 21Q