Chifukwa mphamvu ya batri, kukana kwamkati, magetsi ndi zina sizikugwirizana kwathunthu, kusiyana kumeneku kumapangitsa kuti batri yokhala ndi mphamvu yaying'ono kwambiri izikhala yodzaza kwambiri komanso yotulutsa mphamvu ikadzayamba kuyitanitsa, ndipo mphamvu yaying'ono ya batri imakhala yochepa ikadzawonongeka, zomwe zimapangitsa kuti batri ikhale yolimba kwambiri. Kugwira ntchito kwa batri imodzi kumakhudza mwachindunji mawonekedwe a chaji ndi kutulutsa mphamvu ya batri yonse komanso kuchepa kwa mphamvu ya batri. Ntchito ya BMS yopanda malire ndi yosonkhanitsa deta, yomwe si njira yoyendetsera. Ntchito yaposachedwa ya BMS yolinganiza mphamvu imatha kukwaniritsa mphamvu yokhazikika ya 5A. Sinthani batri imodzi yamphamvu kwambiri ku batri imodzi yamphamvu yochepa, kapena gwiritsani ntchito gulu lonse la mphamvu kuti muwonjezere batri imodzi yotsika kwambiri. Panthawi yogwiritsira ntchito, mphamvu imagawidwanso kudzera mu ulalo wosungira mphamvu, kuti muwonetsetse kuti batriyo ikugwirizana kwambiri, kuwongolera kutalika kwa moyo wa batri ndikuchedwetsa kukalamba kwa batri.