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Renault Twizy – Buzzer with style

A small city EV conqueror came with a charge error and 5% SOC. The owner tried to replace the Onboard charger (new), but it still does not charge. After a little deeper analysis and advice from colleagues from France, the suspicion shifted to a possible defect in the battery. We open this 52V battery pack for the first time and immediately after lifting the lid it was clear that something was “cooked”. One would suspect that a clogged DPF or plastic EGR of the B47 engine was the main culprit, but miraculously it was not, for the first time. Unfortunately for diesel fans, the battery cell did not catch fire nor was it the cause of the defect, but some factory worker apparently forgot to tighten the nut on the fuse to the prescribed 9Nm, so it overheated and melted like when the DPF clogged on a Mercedes. A new cable with pressed copper lugs was made, a new fuse and everything tightened. Twizy has driven with this defect before because the battery has a separate input for charge and another for discharge (motor). After installation, everything worked immediately and the “Undervoltage” errors disappeared. Battery system is LG Chem with 14S 3S Pouch configuration. Cells LGX 6.1kWh. Very very similar and maybe the same as in one type of hybrid. One of our future projects that seems extremely simple is to expand the battery and increase the range using Tesla’s 18650 and 2170 cells. We missed one in the ad this summer, but we are getting one soon.

Twizy is definitely recommended (it can be driven by 16 years old) and is easily repairable.

CROATIAN

Mali gradski osvajač došao sa greškom punjenja i 5% SOC-a. Vlasnik probao zamjenuti Onboard charger (nov) ali opet ne puni. Nakon malo dublje analize i savjeta kolega iz Francuske sumnja je se preselila na mogući defekt u bateriji. Prvi put otvaramo ovaj 52V battery pack i odmah nakon dizanja poklopca jasno je bilo da se nešto “kuhalo”. Čovjek bi posumnjao da je bio začepljen DPF ili plastični EGR B47 motora glavni krivac ali za čudo nije, po prvi put. Baterijska ćelija se na žalost dizel fanova nije zapalila niti je bila uzrok defekta vec je neki gastarbajter izgleda zaboravio stegnuti maticu na osiguraču na propisanih 9Nm, pa se pregrijao i istopio kao kad se DPF začepio na Mercedesu. Napravljen je novi kabel sa naprešanim bakarnim šlapama, novi osigurač i sve stegnuto. Twizy je i prije vozio sa ovim defektom jer baterija ima odvojeni ulaz za charge i drugi za discharge (motor). Nakon montaže sve je odmah proradilo i greške “Undervoltage” su nestale. Baterijski sustav je LG Chem sa 14S 3S konfiguracijom Pouch. Cells LGX 6.1kWh. Vrlo vrlo slične a mozda i iste kao u jednoj vrsti hybrida. Jedan od naših budućih projekata koji se cine izuzetno jednostavni da se baterija proširi i domet poveća sa korištenjem teslinih 18650 i 2170 celija. Jedan nam je promakao u oglasimo ljetos, ali uskoro nabavljamo jednog.

Error : DF137 , DF174 , DF176

Part number: 296050463R, 296055206R, 634A44115, GER-40RN, 296156226R, 295B93949R, 293A01412R

Processor: MPC5516E

Price Renault: 4900€

EVC: 800€

Twizy je definitivno preporuka (moze ga se voziti sa 16god) i lako je popravljiv. 👌👍