Bosch battery with false specifications

[Batteryrepair]

I've been repairing these batteries for 10+ years and have come across some interesting facts.
Some powerpack 500's only contain 430Wh Samsung 30Q cells instead of 35E or MJ1.
This is way closer to 400Wh than 500. Note that the spot welds and nickel are OEM, so this is definitely not recelled.

Also some 300Wh packs contain 400Wh M29 cells, which is nice as you get extra capacity. Though for shipping you can be found responsible if the wrong capacity is registered for the ADR paperwork. Also EU recycling regulations require the right capacity to be mentioned, as do the CE certs.Proof and other findings can be found on my site .

The rack batteries pre 2020 are not very rain proof, it's advised to add some sealant to the screw holes and always check the integrity of the state of charge sticker, as any tear can and will let water in, straight onto the BMS which is a fire hazard... The powertubes do remain waterproof for up to 5 sec when submerged 30cm. After that drops come in through the indicator led sticker.

 

[BlueSwordM]

I'm not surprised. They've been doing this for YEARS, more than half a decade at this point.

It's honestly abhorrent and should warrant a complete recall.

 

[AnthonyC]

The rack batteries pre 2020 are not very rain proof, it's advised to add some sealant to the screw holes and always check the integrity of the state of charge sticker, as any tear can and will let water in, straight onto the BMS which is a fire hazard... The powertubes do remain waterproof for up to 5 sec when submerged 30cm. After that drops come in through the indicator led sticker.

Is that a potential fire hazard or have reports been logged somewhere of fires with any of these batteries?

 

[OlderGiantFan]

I bought a Bosch rechargeable screwdriver some years back, the charging cradle circuitry blew after a year or light use. I routed the two wires that attach to the battery connector tangs outside it and used an RC car lipo charger thereafter. Bosch was a great brand, once upon a time.