WANTED - Focus Jam2 T.E.C pack

CyclingMikey

CyclingMikey

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Hello to whomever may be reading this, i’ve just recently bought a focus jam2 bike and it didn’t come with the tec (tailored energy concept) pack.

I can’t seem to find any online for the life of me and was wondering if anyone had one for sale?

Many thanks
 
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The TEC pack sold out like 5 years ago... so though to find one. Even used, will not bring much benefit as the cells for sure they are cooked.
 
Bogdan_CH said:
The TEC pack sold out like 5 years ago... so though to find one. Even used, will not bring much benefit as the cells for sure they are cooked.
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Damn that’s a bit of a rough one, you don’t happen to know of any alternatives that could be used instead?
 
I was going to recommend the Trailwatts one, but they appear to be ‘sold out’ and not sure if they’re making any more as there can’t be much demand for them now?

I still use my Trailwatts one occasionally, but I also have a ‘home brew’ one I made up from 2 x 5s 5000mAh RC batteries connected in parallel to give a 36-42v extender. I soldered a Rosenberg connector plug to it and it’s all housed in a soft case.

It’s only 180Wh, but it boosts the in frame 360Wh capacity a bit. I’ll dig out a picture tomorrow if of interest.

The good thing is that the Jam isn’t fussy, as long as it sees 36v at the frame extender port it’ll work. When it’s flat just unplug and then restart for the frame battery. That’s on my 2019 model year one, and presuming all the TEC pack models work the same.
 
Tooks said:
I was going to recommend the Trailwatts one, but they appear to be ‘sold out’ and not sure if they’re making any more as there can’t be much demand for them now?

I still use my Trailwatts one occasionally, but I also have a ‘home brew’ one I made up from 2 x 5s 5000mAh RC batteries connected in parallel to give a 36-42v extender. I soldered a Rosenberg connector plug to it and it’s all housed in a soft case.

It’s only 180Wh, but it boosts the in frame 360Wh capacity a bit. I’ll dig out a picture tomorrow if of interest.

The good thing is that the Jam isn’t fussy, as long as it sees 36v at the frame extender port it’ll work. When it’s flat just unplug and then restart for the frame battery. That’s on my 2019 model year one, and presuming all the TEC pack models work the same.
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Wow yeah that would be great if you could get a photo up and if it’s no trouble perhaps inbox me on how you created it?

Alternatively if your ever looking to sell one of them please inbox me as i’ll be keeping the bike for a good while.

Thanks
 
@CyclingMikey Here’s a few pics of my home brew extender, hopefully self explanatory, but please ask any questions. 👍

Most difficult part is finding the Rosenberger connector, I’ve got a 90 degree one somewhere, but this straight one actually works quite well and pushes the plug into the connector on the frame securely. Mine is a medium.

I could carry a couple more 5000mAh batteries in a backpack for very long rides, giving me a 720Wh capacity with the frame battery as well.

The bike powers up as soon as the extender is connected, you could fit a switch somewhere so that you can power it up after plugging in, like the Trailwatts one.

IMG_0836.jpeg

IMG_0837.jpeg


IMG_0838.jpeg

IMG_0840.jpeg
 
Thats awesome love the ingenuity where did you manage to get the rosenberg plug from though as they can't be easy to find surely.
 
Tooks said:
Most difficult part is finding the Rosenberger connector, I’ve got a 90 degree one somewhere, but this straight one actually works quite well and pushes the plug into the connector on the frame securely. Mine is a medium.

I could carry a couple more 5000mAh batteries in a backpack for very long rides, giving me a 720Wh capacity with the frame battery as well.

The bike powers up as soon as the extender is connected, you could fit a switch somewhere so that you can power it up after plugging in, like the Trailwatts one.

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Wow that looks great, love the creativity man you dont happen to have a full parts list too by any chance? Would love to give it a go myself
 
CyclingMikey said:
Wow that looks great, love the creativity man you dont happen to have a full parts list too by any chance? Would love to give it a go myself
Click to expand...

I missed this Mikey, sorry!

Parts list;

1. Suitable soft case for batteries

Epessa Bike Storage Bag for Cycling, Bicycle Repair Tool Bag with Sealed Zipper for Water Bottle Cage : Amazon.co.uk: Sports & Outdoors

Epessa Bike Storage Bag for Cycling, Bicycle Repair Tool Bag with Sealed Zipper for Water Bottle Cage : Amazon.co.uk: Sports & Outdoors
amzn.eu

2. 2 x 5000mAh 5S RC Lipo batteries with XT60 connector, or similar

HRB 5S Lipo Battery 18.5V 5000mAh 50-100C A+ Grade Lipo with Deans T Plug RC Battery for Airplane Quadcopter FPV Drone Helicopter RC Car Boat Truck 5S lipo: Amazon.co.uk: Toys & Games

HRB 5S Lipo Battery 18.5V 5000mAh 50-100C A+ Grade Lipo with Deans T Plug RC Battery for Airplane Quadcopter FPV Drone Helicopter RC Car Boat Truck 5S lipo: Amazon.co.uk: Toys & Games
amzn.eu
(This battery has a Deans plug, either solder a suitable xt60 connector onto it or buy some Deans to XT60 adaptors.

OliRC 4pcs No Wires Connector: XT60 XT-60 to T-Plug Deans Style Male Female Connector Adapter(C17-4) : Amazon.co.uk: Toys & Games

OliRC 4pcs No Wires Connector: XT60 XT-60 to T-Plug Deans Style Male Female Connector Adapter(C17-4) : Amazon.co.uk: Toys & Games
amzn.eu

3. Parallel Y connector

Battery Pack Connector, 2Types 2Pcs/Set XT60 Series Battery Pack Connector Adapter Cables for RC Lipo(1 Female to 2 Male) : Amazon.co.uk: Toys & Games

Battery Pack Connector, 2Types 2Pcs/Set XT60 Series Battery Pack Connector Adapter Cables for RC Lipo(1 Female to 2 Male) : Amazon.co.uk: Toys & Games
amzn.eu

4. Rosenberg Connector
Link as above

5. Fidlock mount cannibalised from an old drinking bottle, but you can use a flexible bottle cage instead.

6. XT60 connector for the Rosenberg cable

ELFCULB XT60 Connector,XT60H Plug Male with Sheath Housing for RC Battery Amass Connector Device Replace (6Pcs) : Amazon.co.uk: DIY & Tools

ELFCULB XT60 Connector,XT60H Plug Male with Sheath Housing for RC Battery Amass Connector Device Replace (6Pcs) : Amazon.co.uk: DIY & Tools
amzn.eu

The only soldering required is the XT60 to your cut to length Rosenberg connector. You only need the positive and negative cables, not the smaller ones.

Optional is an inline switch and also a voltage monitor if you want early warning of rhe pack reaching low voltage, although you can usually feel it getting low, just connect to a balance port.

DollaTek 2PCS RC Lipo Battery Monitor Alarm Tester Checker Low Voltage Buzzer Alarm with LED Indicator for 1-8 S Lipo LiFe LiMn Li-ion Battery : Amazon.co.uk: Business, Industry & Science

DollaTek 2PCS RC Lipo Battery Monitor Alarm Tester Checker Low Voltage Buzzer Alarm with LED Indicator for 1-8 S Lipo LiFe LiMn Li-ion Battery : Amazon.co.uk: Business, Industry & Science
amzn.eu

You will of course need a suitable Lipo balance charger to recharge the Lipo batteries, something like a B6 clone.

WDKXCN Lipo Battery Charger, 80W 6A Lipo Balance Charger, RC Battery Charger with Power Cord, Airsoft Battery-charger, Imax b6 Recharger with AC Power Adapter for Li-ion, NiMh, Li-Fe, NiCd, Pb: Amazon.co.uk: Toys & Games

WDKXCN Lipo Battery Charger, 80W 6A Lipo Balance Charger, RC Battery Charger with Power Cord, Airsoft Battery-charger, Imax b6 Recharger with AC Power Adapter for Li-ion, NiMh, Li-Fe, NiCd, Pb: Amazon.co.uk: Toys & Games
amzn.eu

Hope that helps, feel free to drop a message or ask any questions. 👍
 
Fangs2k said:
Aioin suositella Trailwattsin mallia, mutta ne näyttävät olevan "loppuunmyytyjä", enkä ole varma, tekevätkö he enää lisää, koska niille ei voi olla nyt paljon kysyntää?

Käytän Trailwattsiani edelleen satunnaisesti, mutta minulla on myös "kotitekoinen" laite, jonka tein kahdesta rinnakkain kytketystä 5s 5000mAh RC-akusta, jolloin saan 36-42 V:n jatkeen. Juotin siihen Rosenberg-liittimen, ja se on kokonaan pehmeässä kotelossa.

Se on vain 180 Wh, mutta se lisää rungon sisäistä 360 Wh:n kapasiteettia hieman. Etsin kuvan huomenna, jos se kiinnostaa.

Hyvä uutinen on, että Jam ei ole nirso, sillä kunhan se näkee 36 V rungonjatkeen portissa, se toimii. Kun akku on tyhjä, irrota vain virtajohto ja käynnistä se uudelleen rungon akun lataamiseksi. Tämä koskee minun vuoden 2019 mallia, ensimmäistä mallia, olettaen, että kaikki TEC-akkumallit toimivat samalla tav
Fangs2k said:
@CyclingMikey Tässä on muutama kuva itse tehdystä kahvinkeittimestäni, toivottavasti tämä on itsestään selvää, mutta kysy toki, jos on kysyttävää.👍

Vaikein osa on Rosenberger-liittimen löytäminen. Minulla on jossain 90 asteen kulma, mutta tämä suora toimii itse asiassa aika hyvin ja työntää pistokkeen tukevasti rungon liittimeen. Minun liittimeni on keskikokoinen.

Pystyisin kantamaan repussa pari 5000 mAh akkua lisää erittäin pitkiä matkoja varten, jolloin rungon akun kanssa saisin 720 Wh kapasiteetin.

Pyörä käynnistyy heti, kun jatke on kytketty. Voit asentaa kytkimen jonnekin, jotta voit käynnistää sen kytkemisen jälkeen, kuten Trailwattsin tapauksessa.

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Hei! Asensin vaimoni Sam2-pyörään ylimääräisen 36 V:n akun ja kytkin uuden 2-napaisen liittimen rungon latausportin viereen. Nyt kun pyörän oma akku on "tyhjä", laitoin ylimääräisen akkuliittimen paikalleen ja pyörä käynnistyy heti, mutta en saa mitään muuta kuin eko-tilan päälle. Se näyttää myös tyhjän akun. Onko mitään vinkkejä/ideoita?
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