Recent content by kcuf

contact lyen

never around when you need one

only illegal if you get caught nice skills and workmanship

parallel groups - series strings parallel groups behave as 1 large cell wired in series to form a string to achieve desired pack voltage bms requires wire connection to each series string point which protect the parallel group example 2p14s describes 2 cells in parallel (capacity...

good cells 4.2 is okay don’t let sit there for long use almost immediately reduces degradation not sure when next use stop around 4.0-4.1 then quickly top off for full capacity if needed 50% dod is smart money

sometimes it can take weeks 60-80mA isn't much energy dissipation especially poorly balanced series strings and you also need charger that restarts charging after bleeding down and bms resumes charging not all chargers do this

sentimentally prefer endless-sphere.com but hyphens in web addresses suck imo endless sphere has always been difficult to share verbally especially to someone casually asking where to learn about ebikes ebikes.com ftw

why i prefer bypass these bms too goofy for operational reliability

"throttle for top speed runs" never good idea any bbsxx short bursts 100% power only understand controller peaks around 1500w design rated 1000w continuous enable 9 power levels ride all day level 7 or below 8, 9 or full throttle is gamble

3qty 30Q packs here 2 used cold freezing weather both dead less than year most cells exhibit self discharge 1 pack mild weather 3 yrs going strong no measurable self discharge coincidence? possibly but now refrain from below 50F charge

no b22

the nerve

more limited choices bbs 02 vs hd smallest front ring better 44t if option cassette cogs may be readily changeable freewheel cluster cogs not so easy most riders will never need more than 3-5 gear options

that damn bms feature causes many unhappy users for my herd often bypass bms power load path no switch though load power straight from tabs only charge power through bms much smaller/cheaper bms charge only outdoor discharge using conservative controller lvc often safe enough

personally use cheap $10-$12 chains between 1-2k miles before seeing measurable wear avoid small rear cogs especially 11t use a chain wear gauge/tool regularly swap for a new chain any measured wear doing so greatly reduces cog wear