A helpful review. Teks Kosong mThe main practical lesson is to avoid the ultra-small versions with a 300–350 mAh battery (they're literally only for one use), but look for models with 500 mAh / 7.4 V, like Cyclami. And a special plus for the warning about the hose and TPU nipples—without them, the plastic will melt instantly. Bead 16
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