Curt
Member
Hello .. how's the testing going with the battery extenders for bosch ?
Trail Watts starts testing Range Extender for Bosch.
- Thread starter TrailwattsUK
- Start date
- Thread starter
- #62
I’ve halted in this due to restrictions on time.
Hopefully once Bosch updates firmware to be more reliable without glitches as I see currently then I will continue.
Hopefully once Bosch updates firmware to be more reliable without glitches as I see currently then I will continue.
Steve940
Active member
Once you've got this sorted I'll be very Interested,for me the only real downside to ebikes is range,I'm constantly checking battery life just incase.ive found the gen4 bosche and 625wh to be better than expected but another 3-400 would possibly stop me even thinking about it..
- Thread starter
- #65
Sorry but I’m concentrating on shimano as I’ve received my EP8 test bike.
- Thread starter
- #67
Due to the lack of adjustability like other brands. Bosch battery consumption is not where it needs to be for viability with my module. It can be done and proven but until they move to user friendly apps and software that doesn’t disable the motor with false registering of derestriction. Plus if their 625wh on the gen 4 can’t do 2 laps of my local trail centre vs my 2018 levo on 504wh can?
Over engineered firmware and systems i shy away from. Other brands and motors are well ahead in the user friendly and compliance.
InRustWeTrust
E*POWAH Master
do you know how much wh the extender for the ep8 is gonna be ?
- Thread starter
- #69
Will depend on frame/ brand etc. I’m testing new module design for shimano
Simps
Member
Such a shame about the Bosch testing but understand. Thank you anyway.
- Thread starter
- #71
I’m not ruling it out completely but shimano is a very good motor/ software package.
Something wrong there, my 625 easily outlasts all my mates on 504 Levos and is closer to a 700 Levo than the numbers would suggest.
- Thread starter
- #73
Well same bike, same trail, same rider, same weather and both derestricted. Testing at speed is the only way to calculate range. Anyone could ride huge distances in eco with ultra fitness.
those dimentions for the bottle battery would fit in my Whyte E150 bottle cage ok. very interested in this product .
- Thread starter
- #75
We will be progressing with testing this summer.
I have my finger crossed for the Bosch extender but there is something weird if your 625 Bosch won’t outlast a 500 Spesh.
I’ve had a Levo with the 500 and 700 battery as well as a 625 Bosch and the Bosch is on a par with the 700 Spesh.
I also ride with a 700 levo and a 500 kenevo with one of your 250 extenders and they are all very similar. Same routes, speeds and I’m just slightly the heaviest.
I’ve had a Levo with the 500 and 700 battery as well as a 625 Bosch and the Bosch is on a par with the 700 Spesh.
I also ride with a 700 levo and a 500 kenevo with one of your 250 extenders and they are all very similar. Same routes, speeds and I’m just slightly the heaviest.
- Thread starter
- #77
The 625wh Bosch derestricted vs 2018 levo 504wh derestricted and the levo won. Sad to say that the testing I do is very thorough and even after diagnostics and firmware update on the trek rail did not change the results. If you ride in low assist modes and have a restricted bike then you get a better range. Testing on Bosch is continuing after investing in equipment and I receive Bosch booster enquiries daily so my results must be shared by owners to some degree.
i will add to the list for a bosch range extender, i do hope you can sort one.
my 2p on range (generalizing here no actual proper figures) , gen4 625 emtb mode vs a yamamha pwx-2 600 trail mode both derestricted, the Yamaha beats the bosch for range hands down.
im fact just did dalby red 22.5 miles 12deg with a first timer emtb on haibike all mtn 7 Yamaha using mostly turbo/boost beat the other bikes gen4 (moustache 29 trail 10) for battery life. emtb mode can really suck the life out of a battery.
my 2p on range (generalizing here no actual proper figures) , gen4 625 emtb mode vs a yamamha pwx-2 600 trail mode both derestricted, the Yamaha beats the bosch for range hands down.
im fact just did dalby red 22.5 miles 12deg with a first timer emtb on haibike all mtn 7 Yamaha using mostly turbo/boost beat the other bikes gen4 (moustache 29 trail 10) for battery life. emtb mode can really suck the life out of a battery.
Im also interested in this as it seems a better option than carrying a spare PowerTube. Especially if it is removable for use as and when needed
Hi mate,
I have only just found this sub forum... Nice work!
I find it interesting and practical that you test range with de-restriction. I ride a 2020 Mondraker with Bosch gen 4 and Volspeed 3 and it has been amazing, I just set it at 60kmph and send it (I figured if I'm going that fast it is downhill and I wouldn't be peddling). It has given 1 error in 2 years during a massive down-pour where I found water in the piggyback connectors.
I do a lot of fast commuting miles and find I can get about 40miles in trail mode on one 625wh battery, pedalling as hard as I can.
I have made some small modes to increase range, a lighter wheelset, 2.1 Thunder Burt tyres and a larger chain ring.
I don't have anything else to compare it to but I have been really happy with the Bosch. I would only consider another motor if it was proven to give better range when de-restricted.
I'm happy to test any products if required.
Cocktail_Dave
New Member
I Will buy this now!!
I have been looking for ages and was just getting ready to buy another battery and a backpack!!
Please PM me if this is available for pre order!!
I have been looking for ages and was just getting ready to buy another battery and a backpack!!
Please PM me if this is available for pre order!!
I'd keep looking as I don't think it's anywhere near to coming to market ..a clue would be if you looked at the dates of the previous posts ..
These guys claim to have a range extender for Bosch,I have no idea how good it is etc,I have not used it.
- Thread starter
- #84
Once we have finalised module design then we will be able to offer fittings. This kit will not be a plug and play option as Bosch integration requires motor/ battery removal along with selecting cable output and length for each model/ variation.
Cocktail_Dave
New Member
I had seen they where old buddy, I just thought it might be worth a punt !
Cocktail_Dave
New Member
Thats the one o bought only to be told after I had made payment they wanted my battery
- Thread starter
- #87
Here’s an example of a ‘so called’ active system available from one of these companies. Customer’s battery BMS was destroyed and the power input PCB within motor has burnt off the main board and was rattling around in motor casing.
Cocktail_Dave
New Member
Workmanship looks shoddy, I would not expect that for £500
- Thread starter
- #89
Exactly my point
parnel bosch gen4
Member
What about disasembling bosch battery and do the conection for extender before orginal BMS ?
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