charge a e bike battery moterhome how

[hoogwoud]

Hallo how best way too charge a e.bike battery when on the road off grid inverter but what kind i have bosch battery on e bike what do i need thanks

 

[two]

I think they did offer a 12V charger but it was withdrawn.
Your only option is to get a PSW inverter. What rating is your charger?
I'd advise only charging whilst on the move (with the engine running)
E-bike batteries can take a lot of charge (mine are .75kW) so can drain a habitation battery without support.
Frankly, the best way to charge is on EHU (and then you already have everything you need).

 

[suavecarve]

Hallo how best way too charge a e.bike battery when on the road off grid inverter but what kind i have bosch battery on e bike what do i need thanks

Its your lucky day.
Well done on purchasing a Bosch battery, no doubt the European free recharging points came into your thinking (I found them by accident)
Take a look at this thread https://www.motorhomefun.co.uk/forum/threads/bosch-free-recharge-points-in-vaucluse.248633/
then go to post number 6 and there is a link to all the bosch free recharging points in France for you. No doubt they do them in Europe as well

Bosch eBike charging stations in tourism regions

Bosch charging stations for eBikes: Find charging stations for Bosch eBike systems in tourism regions in Switzerland, France and Italy.

www.bosch-ebike.com

 

[suavecarve]

If you go to here https://www.bosch-ebike.com/en/serv....98665114412175|8.748488255468772&type=dealer
you can choose your country (Holland) and see where the free Bosch chargers are

 

[two]

That's really interesting (free recharging)
I suppose they're expecting you to eat/drink at their premises whilst they recharge.

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[suavecarve]

That's really interesting (free recharging)
I suppose they're expecting you to eat/drink at their premises whilst they recharge.

Nope, when we went to the Vaucluse, there were 60 places that did it in that area. Museums, bike shops and toursit information places and hotels.
You cycle to the place, park your bike up outside, take your battery off and wander on in. Ask for your bosch charger to be charged whilst you wonder round the town, have a beer and come back. It s all charged.
It sounds too good to be true but its just brilliant.
Bosch have just sent these people a charger, a couple of places we went they had to open up the charger box as it was first time use, so I presume it is fairly new.
Many of the places have nothing to sell you

 

[Aerialmark]

What a great idea ! I have a Cube Emtb with a Bosch motor.

 

[two]

I've just thought about it:
My battery is unlikely to be flat, so may take up to half a kilowatt-hour of electricity to recharge and the cost of that is not much.
Just the waiting time to consider.

 

[suavecarve]

If you go to here https://www.bosch-ebike.com/en/service/powerstations#country=157&bounds=51.428293140039266|1.8106220445312715|52.98665114412175|8.748488255468772&type=dealer
you can choose your country (Holland) and see where the free Bosch chargers are
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I just worked out that if I chose holland or Spain then the search changes from "charging points" to "dealers" so these are not charging points in the post of Holland (the french ones are)
Germany has some

Switzerland has some

And Austria has a few

Nothing for UK Belgium Holland Spain or Portugal

France below as I hadnt snipped that in this thread

 

[Garfields]

Places up here are happy to charge your batteries while you are having a snack etc
You need to have your charger with you though
Not had to make use of the service

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[Lenny HB]

I have a 1000 watt Pure sinewave inverter, I can charge both batteries at the same time but it hammers the batteries. I tend to charge one at a time and top them up rather than charge from flat.

 

[Garfields]

Just had a look and there are a few marked in Scotland
One fairly near one of our cycle routs that we could make use of if we were caught short so to speak

 

[jumar]

I'm charging two 540wa YT eBike batteries in about 3 hours....How...one on my Leisure battery supported by a 200w Solar the other via my Bluetti power pack supported by a 150w freestanding panel....one added advantage is we live and ride in a country that provides 300 sunshine days a year....if we travelled to the UK I would carry a small 2T gennie to ensure we have power to ride..

 

[Kannon Fodda]

Pure sine wave inverter. I use a Victron 375 which with the compact Bosch Charger is larger than needed. But it's the battery you are pulling from that is more significant. With a 120Ah Lithium I can recharge a 500 Bosch battery almost depleted once and still have juice for other needs for a couple of days if not driving and the sun isn't shining for solar.

A fully depleted 500 battery on the compact charger takes a fair few hours to recharge. Doing that on the move is not going to be that practical unless I really am going a long way.

 

[68c]

DC to DC converter, can take 12volt DC and convert it to 42volt DC for the ebike without converting DC to AC to DC with those losses. They are fully adjustable for voltage and current. Most most 240volt ebike chargers are fairly simple and for the common 36volt bikes output around 5amp at 42volts. Your battery has a built in BMS to control and protect things.

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[Lenny HB]

DC to DC converter, can take 12volt DC and convert it to 42volt DC for the ebike without converting DC to AC to DC with those losses. They are fully adjustable for voltage and current. Most most 240volt ebike chargers are fairly simple and for the common 36volt bikes output around 5amp at 42volts. Your battery has a built in BMS to control and protect things.

With Bosch you have to send a 5v signal to the sence pin as well.

 

[Jamesh]

With Bosch you have to send a 5v signal to the sence pin as well.

Need a usb feed then???

Way out of my depth....!

Had a talk on national grid infrastructure by retired engineer today, very interesting but our of my depth before first 5mins!!

 

[68c]

I suppose that just means a common 12v fed USB charger, cheap on eBay.

 

[Lenny HB]

Need a usb feed then???

Way out of my depth....!

Had a talk on national grid infrastructure by retired engineer today, very interesting but our of my depth before first 5mins!!

There is a thread on Fun somewhere about it, not that difficult to do you can use a buck converter for the 5v supply.

 

[two]

I'm not so sure that it's as simple as providing a 5V trigger. I thought that there were other signals being exchanged between battery BMS and charger to control the charging process. There are, after all, more than three contacts in the connection...
For the price I've paid for my e-bike batteries, I wouldn't want to risk damaging them.

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[68c]

Did not know Bosch batteries different to many two wire charging batteries.

 

[Mixyblob]

We have just bought a couple of Specialized Vado SLs which don't have removable batteries. I've fitted a Victron 375 inverter and a couple of 230v sockets in the rear of the van with a changeover switch.
This allows us to charge the bikes whilst they're mounted on the bike rack, either while traveling, on EHU, or off grid, if its sunny enough.
We have 2 x 110ah batteries and 300w of solar but I think we'll struggle to charge both bike batteries unless we're on hookup or traveling as the inverter pulls 50-60 amps on full chat.

 

[Lenny HB]

I'm not so sure that it's as simple as providing a 5V trigger. I thought that there were other signals being exchanged between battery BMS and charger to control the charging process. There are, after all, more than three contacts in the connection...
For the price I've paid for my e-bike batteries, I wouldn't want to risk damaging them.

That's why I use a PSW inverter.

 

[jumar]

That's why I use a PSW inverter.

Me too...at 750€ for our Custom built YT eMTB batteries I wouldn't risk damage to them...
Currently (Pun intended) our tried and tested charging system is working fine.... I'm sure if we lived in the UK my thoughts would be elsewhere...
During my research I used many sources in both Australia and the US...they appear to be more switched on (?) to harvesting Solar and charging eBikes...

 

[jonasw19]

Depends on your type of cycling. We do 20 to 40 miles using 1/3 to a 1/2 of our 500wH batteries.
Put them on charge simultaneously on our 300W inverter, which draws 18A to 20A.
Lithium 2x 100AH hardly blink.
We do tend to move every 2 or 3 days, driving for about an hour, with a 45A b2b. We can last off grid ok at this time of year.
However if you regularly drain your cycle batteries every time you may need a different regime, though if you have a b2b and drive for an hour a day you could probably cope ok.
Add solar in spring and summer and it works even better.
We find that the discharge rate of ~20A whilst using the inverter is much lower than the 45A b2b output into the hab batteries, which they absorb easily. So charge bikes when stationary.

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[Phill D]

Hallo how best way too charge a e.bike battery when on the road off grid inverter but what kind i have bosch battery on e bike what do i need thanks

 

[gerry mcg]

I've got a 500W Victron PSW inverter paired to a 200Ah lithium battery and the bosch rapid charger for Mrs. Cube EMTB

 

[autorouter]

We have just bought a couple of Specialized Vado SLs which don't have removable batteries. I've fitted a Victron 375 inverter and a couple of 230v sockets in the rear of the van with a changeover switch.
This allows us to charge the bikes whilst they're mounted on the bike rack, either while traveling, on EHU, or off grid, if its sunny enough.
We have 2 x 110ah batteries and 300w of solar but I think we'll struggle to charge both bike batteries unless we're on hookup or traveling as the inverter pulls 50-60 amps on full chat.

Looking at the ads, I read that the batteries are 320Wh, so 640Wh for two. Your 2 x 110Ah batteries have a capacity of 220 x 12 = 2640Wh, so even with a bit of inefficiency that will be plenty to charge them once or twice. Your 300W of solar will give you about 1000Wh even on an average day, so that will allow you to refill the leisure batteries OK. Also, I think the maximum a 375W inverter will take is 31A, so I don't know where the 50-60A figure comes from.

 

[Mixyblob]

Also, I think the maximum a 375W inverter will take is 31A, so I don't know where the 50-60A figure comes from.

Until I fit my ammeter, which is hot footing its way from China, all I know is the inverter blows a 50A fuse but not a 60A. Not an ideal way to measure the current draw but thats all I've got at the moment.
It could be just the initial surge causing the fuse to blow.

 

[Heebson]

We have just bought a couple of Specialized Vado SLs which don't have removable batteries. I've fitted a Victron 375 inverter and a couple of 230v sockets in the rear of the van with a changeover switch.
This allows us to charge the bikes whilst they're mounted on the bike rack, either while traveling, on EHU, or off grid, if its sunny enough.
We have 2 x 110ah batteries and 300w of solar but I think we'll struggle to charge both bike batteries unless we're on hookup or traveling as the inverter pulls 50-60 amps on full chat.

Can I just ask how you are charging them whilst travelling? As in, have you made some kind of weatherproof exit point for the cables?

(I’m on the point of ordering two Vado’s, but not SLs, so I can get the battery off!)

thnx,
Heeb

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