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56.6v says that IF all cell groups are equal then they are at 4.04v each which is good. Though it is likely possible that one or two cell groups may be at or under 3v. One will have to probe each cell group individually and write down the 14 results for us to see.

70/30 solder should work ok . A 60w iron is plenty for battery work or small electronics , for larger wire use a wide flatter angled tip or one of the larger round flat tips with a 3mm flat face . Pre soldering the tip and applying more solder on an existing one helps to desolder easier by...

Cells are panasonic either PF or 18650b, pretty reasonable cells so they shouldn't fail unless the BMS has drained them.

Take a pack reading first in case the BMS has gone to sleep. Probe the first cell group end with thick Black wire attached and the last /14th cell group end with thick Red wire attached. If you get a reading of 58.8 v or a little under then the BMS is at fault or a sleep. To wake up the BMS...

The spoke/ nipple angle is terrible , given time spokes will snap. It certainly looks like it has been laced/built by someone with little or no idea. The chain length is easy to check , remove the chain from the derailleur and wrap it around the two largest gears . The ends should should meet...

If any cells have dropped below 2.5v each then the effort isn't worth it for ebike battery use. Take a proper pack reading by removing all the shrink wrap and probe the first and last cell group.

The findings below in the link are those of the City of Westminister for Cycle accidents in London , how they fair to the rest of the country may be differnent but one would think not much though. Crashes involving bikes mostly driver’s fault | The Times Crashes involving bikes mostly...

His driving ban I believe as with most bans starts after the sentence or the release of the offender, I didn't see it reported but often they have to take an extended re test to get the licence back.

Sadly not long enough for killing some one, though 5 years is the max sentence for the offence. However I feel if it had been an ordinary member of the public he wouldn't have been given 5 years. I doubt the family will feel 5 years is long enough but the fact he has felt the full force of the...

tsdz is diyable with osf and motor repair, bosh isn't diyable and uses Can.

Security minister Tom Tugendhat banned from driving over phone use - BBC News Pleased he wasn't able to wriggle out of this one, it has been circulating on other forums for a while now.

The marking 24/20 does suggest it could be a 24v motor for 20" rim build so one may be best selling it as so, running at 36v just means it will run 50% faster and incur more torque with higher current. The motor with more current will likely run hotter esp at slow speeds.

No. The motor gearing is std thru the range and most are 4:4:1 or something close. The Rpm of the motor winding can vary depending on the bike or market it is for. For 26" wheels it can be anything from 201rpm,15/16 mph to 260/270rpm, 20 mph and some 300rpm for 24/25mph. Though usaully for...

XF07 Mxus hub. As for motor speed who knows ? One will have to run it to find it's max no load speed with the speed limit removed.

It is a Shengyi branded hub.

Show us picture and as mentioned by sturmey one can tell by rotation if it is a geared or Direct drive hub. As to manufacturer it will be a china hub. Sometimes a pic can help with a brand. A brand though really matters not if it works, working out it's approx. rpm simply down to some...

There's tons of stuff on ES and some really good reference stuff , but one has to sort the wheat from the chaff and do his /her own research as well.

I don't know if that is our old cwah or not as the bike looks like a decent normal ebike. He's was well known for his lashed up ebikes which all looked like a dogs dinner of components and design, he always amused us with his antics. Mostly he was in to hot rodding small wheeled bikes and fast...

More reading , all offering good advice and tips to save on mistakes. 18650 spot welding -how to- ULTIMATE REPOSITORY - Endless Sphere (endless-sphere.com)

What one needs to know is the max current expected to be drawn, this is down to the motor controller. Once this is known one can then calulate the minimum Buss mm2 Ampacity required to transfer the max rated current for the series conections. Calculating Buss mm2 is easy, simply multiply the...