LabTEC 14.4V 4000mAh Replacement Battery for i7, Li-ion Battery for iRobot Roomba 7150 7550 3150 3550 4150 4552 i4 i4+ i3 i3+ i7158 i7550 i755020 4624864 ABL-D1 Vaccum Cleaner

As a straight replacement for the money it is ok, however thought it claims to be double the capacity of the original the run time is no longer than the original battery when it was new.I would say it gives a slightly shorter run time than when the robot was new with its original battery but gives a longer run time than at the point of replacing the original.

This battery fits a J7+ perfectly and took only a few minutes to fit. However, the claim that this battery is 1.5x the capacity of the original doesn't seem to be supported by real world use. Runtime of the J7 with it's original battery was about 1.5 hours and this one manages about 1.3 hours. So this is a low cost alternative to the original part with a slightly shorter runtime.

It listed as double capacity of the original battery. But in fact it has about 50% of the life of my original battery which is three years old. It is really disappointing. Very low quality.

This is twice the capacity of the OEM product. But lasts no longer in general use. In fact it runs out and goes on charge for slots idnetical times as the oem battery.

Come al solito è una cineseria con valori dichiarati ben al di sopra dei reali.La durata reale infatti è inferiore all'originale, e non di poco.Inoltre dopo 2 cicli di carica ha smesso di funzionare, il robot torna alla base, segnala che a carica è in corso, ma resta sempre al minimo, e nn si avvia più.Da non comprare.

Sostituita batteria Roomba ormai inefficiente dopo due anni; ma in verità la nuova funziona come la vecchia.