Very thin shell (too much?) And especially giving off a strong smell of complex solvents (aromatic) that share after several days of ventilation. Impressive battery, volume doubled. But only extended range of 25% (used battery?) Despite several unloading / reloading. 3 * anyway because it remains an inexpensive solution acceptable to earn 1 to 2 hours of battery life 1 Rating end of life and that has deep pockets or a purse. In the end, I switched to a more autonomous next generation without backpack enjoying balances ...
