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What's HS? Do you mean Bosch "Performance Speed"?

I don't think that's the whole story. True, an ebike battery, being bigger, will likely burn longer and hotter than a cell phone battery, but a cell phone battery can still act as an ignition source and burn your house down, if it failed. But most of the batteries in the things I (and others )...

Rechargable batteries? First with Lithium: 3x camera 2x go pro 4x dji drone 2x 750 watt Bosch ebike Nyon bike computer elec mower (4a 48V?) elec trimmer (2a 48V?) 3 cell phones 3x hitachi drill 2 android tablets ipad 3 laptop computers wireless speaker rechargeable utility light 2x pairs...

It's unfortunate that most of the battery fire discussion doesn't break down the problem by type of bike or battery. Many news items don't even distinguish between scooters and bikes! None discuss DIY vs no name cheap imports vs name brand bikes. I wonder, for example, if there have been any...

Bikes parked until March, unless we do a southern road trip. Warm days, like yesterday, where it hit 50, are rainy. On top of that, the town sanded roads some time back, so our local steep hills are treacherous. Time to set up the trainer.

Yes, this is pretty obvious. Why are you wasting time with "suggestions" from a clueless background? You do know, for example, that hub motors are very different from mid-drive motors? You do know that Bosch locks down their systems pretty tightly? I guess not for either... Stick to your...

Yea, upside down will do wonders for any hydraulic brakes. Just saying...

It's "soft science" because most of the research has been done with other battery systems (i.e. not ebike) and even with ebikes, there are so many variables between/among battery systems that it's difficult to generalize across different battery systems. The OP's hope of hearing from a Bosch...

INHO, you have a greater risk of damaging the battery or worse, the controller, than you do extending the battery life by discharging before storage. Keep in mind that much of the guidance on battery storage - to partially discharge the battery before long term storage - is based on soft...

Sad to hear this. And here I thought ignoring bugs was only a problem of the cobi.bike team.

Lion batteries have unique risks beyond just the electrical energy that they store, because of a highly flammable electrolyte. Another problem is thermal runaway, which often means that, especially with cheaply designed cells and packs, when one cell fails, it will trigger failure of adjacent...

Interesting that Northeast Battery says, on their website, that they rebuild Bosch batteries! Thank goodness I don't need that service yet...

Bosch motors are weatherproof, not waterproof. That's a big difference. In fact, on mine, a trek, the bottom of the motor housing is open, presumably for cooling, but it would clearly allow the motor to get soaked if I went into water. I suspect your bike is the same, and riding through...

What bike do you ride? These failures seem pretty remarkable?

Whatever bike a senior buys, it pays to look ahead. What's easy this year may not be next year...fact is that "getting in shape" is much tougher as you age.

I doubt the Yuba Kombi E5 will fill the bill. It has Shimano's lowest performance motor, 40NM torque, coupled with a pretty narrow range gear set. A great climber it isn't. Good city cargo bike for relatively flat areas, but no hill climber, especially under load.

Problem is, except in limited circumstances, such as display upgrades, we consumers are not Bosch's customers. We're customers of the retailer or the bike manufacturer. Think of your car. Bosch makes parts for cars that it sells to car manufacturers. If one of these parts fails, we deal with...

DIY mods, upgrades and builds are great for those of us who have experience in making things, especially things electrical, but is bad advice IMHO for someone without the experience. Consider the amount of electrical power one is dealing with on a typical ebike. We already see reports of...

I don't believe UL listing is mandatory for US manufacturers. It's tempting to mandate safety standards, but you can't mandate against stupidity, can you. Worse is that all too many people seem to ignore the risks of Lion battery packs. Just look at the number of posts on this board about...

Lovely video! Well done. Wish my hills were as shallow as yours...