4 ms·

Primarily we need investment in a battery chemistry that doesn't have 'self-sustaining exothermic runaway' as a normal failure mode when overcharged, or charged

Primarily we need investment in a battery chemistry that doesn't have 'self-sustaining exothermic runaway' as a normal failure mode when overcharged, or charged too fast, or discharged too fast, or discharged to too low a voltage in a pack without a proper BMS, or charged after being discharged to too low a voltage, or physically damaged, or due to random manufacturing defects. It's not just hoverboards and escooters, it's those exploding laptop batteries years ago, exploding samsung phones, and now in nearly all EV's. Recently I've been seeing more LiCo packs powering wheelchairs. The RC community are more often selecting to use LiFePO4 batteries in their controllers, regardless of what's in the remote device. Boat builders prefer LiFePO4 for safety reasons. Lithium iron phosphate batteries don't have an exothermic failure mode other than standard flammability of the materials. LiFePO4 or similar should be a standard for any large-capacity battery powered device a person holds, wears, or occupies. My main concern now is what's going to happen as these batteries age. Ebikes and escooters in general are going to earn a reputation that should be earned by a specific battery chemistry. EV's will too as more of them age into the backyard mechanic resale price range. People are going to get hurt, and leaders who don't know better will hamstring lithium batteries in general.

05 4y ago
> The RC community are more often selecting to use LiFePO4 batteries in their controllers, regardless of what's in the remote device. The majority of transmitters uses lipo/li-ion. You already have a lipo in your phone, why not in the TX? Not many people sleep while their radios are charging on their nightstand.. Boats are the only type of rc craft where using LiFePO4s is feasible, because they are less weight sensitive. Try selling switching to LiFePO4 to quadcopter pilots, for example..

05 4y ago

> The RC community are more often selecting to use LiFePO4 batteries in their controllers, regardless of what's in the remote device. The majority of transmitters uses lipo/li-ion. You already have a lipo in your phone, why not in the TX? Not many people sleep while their radios are charging on their nightstand.. Boats are the only type of rc craft where using LiFePO4s is feasible, because they are less weight sensitive. Try selling switching to LiFePO4 to quadcopter pilots, for example..