Recent content by jerrysimon

Ah thanks, that makes sense. Jerry

Good advice. I still don't get what that white wire is for ? Jerry

That looks like four Lead Acid batteries in series, so 48v ? Cant quite see where the wires are loose ? It doesn't help that they seem to have used same coloured wire on some of the batteries for positive and negative connections. Certainly looks like it could do with a little tidying up...

Thanks for the kind offer cwah. Will see once I decide which cells I am going to use. My batteries are all running fine at the moment but I am hoping to get early retirement soon so will have more time on my hands to "play" in the workshop :) Jerry

Thanks cwah and 999zip999. Not in a hurry to get them yet so will have a think about it. As you say for the same 4p pack I can effectively double the capacity of my existing lightweight packs :) I doubt I draw more than 6-8Ah max mostly its around 3Ah so could probably get away with cheaper low...

Lightweight Tonxgin motor that rarely draws more than 5-8A max. All my conversions are for lightweight, light assist bikes :) I doubt I will ever use more than 42v, 10s given I am not intersted in assistaing more than 15mph. Jerry

Just seen this thread again. I am over three years on these commuting on my Brompton 10 miles round trip to work. Its pretty flat no hills and driving a low power Tongxin motor. They are still running and balanced perfectly. I dont think I have even balanced these since I first built the 2p and...

Pimarily I use Li-ion. I have some old A123 Life cells which I started with but moved to my current packs which are Konion 1.6A. Been running faultless for well for over 3 years. I make and use a small pack either 5s2p or 5s4p which I then put into series for 3 or 6ah 36v packs. All my setups...

Having said that this review looks good :P https://www.youtube.com/watch?v=t49P2nh9_t0 This is the 5amp version. Jerry

Thanks for the recommendation, looks very good. Problem is I would have to get it shipped from HK, so import duty and stuffed if its faulty or fails later :( P.S. Hey cwah didn't recognise it was you 8) Jerry

Hi all, Really not sure if this is the right area to post this, please move if I got it wrong :oops: Anyway seems I have got by without one of these for years using ex converted PC power supplies and my trusty Turnigy Accucell but these things seem cheap. As well as general use and to power...

On my small wheeled bikes I like mine on the front via a frame mounted luggage block i.e. no load/effect on the steering. Jerry

14kg is the carry weight (incl motor and controller fitted) of the bike which incl guards, big apple tyres fittings etc. The battery is in the rucksack which clips on the Klickfix fitting on the seat post. I have a choice of DIY 1kg 3Ah or 2kg 6Ah batteries. I live in Cambridge so my 10 mile...

I have used that seller before to buy some welded up 5s2p Konion cell replacement drill pack inserts, which I then adapted for my ebike. Good reliable supplier with good communication. Jerry

This is mine This is a very light assist (200W/10amp max, 1.4kg motor) but also very quick. This keeps the bikes carry weight to under 14kgs (battery in an attached bag/ruck sack). Full details here...