Czech metro ahobammɔ a wɔde DFUN battery hwɛ nhyehyɛe so tumi .
Bere a nkurow akɛse mu akwantu nhyehyɛe kɔ so yɛ nea ɛwɔ hɔ nnɛ no, hwɛ a wɔbɛhwɛ ma ahotoso a ɛwɔ anyinam ahoɔden a wɔde di dwuma ntɛm mu no abɛyɛ ahobammɔ ho ahwehwɛde a ɛho hia kɛse. Wɔ nnansa yi a wɔde dii dwuma no mu no, DFUN de ahantan de battery monitoring system (BMS) ano aduru a ɛkɔ akyiri maa Prague Metro System wɔ Czech Republic .