Endless Sphere

54.6v is 48v 13s top charge

if measurements correct

pack is not fully charging

many phone apps

strobe measurement

chain wear gauge

used regularly

any sign wear

replace chain

cogs last much longer




replacement interval

cheap 6-8 speed stuff

about 1000 mile

2 months my commute

forum rules

require price

for sale items

on good day

bbs02 barely tolerates

750w continuous

more like 600-700w

especially hot days


many programmings

full throttle or high PAS

exceed 1000w


major difference between

peak and continuous wattage



limiting average power prevents

damage to controller

unsupportive shops exist

thankfully fewer every year

their loss ebikes gain

crimp strands with insulation If you crimp with insulation inside the crimp, it doesn't compress all the metal to make it a single piece (cold weld). So the contact may not be as good, and can allow moisture into the crimp (whcih can corrode it over time), and the wire can also pull back out of the...

crimping app

to small ga wire

strip amount insulation

fold strands covering insulation

crimp strands with insulation

nice strain relief

bbsxx originally 24-36v

do not believe bafang

modified internal gearing

for 48v


if you actually pedal

48v may seem too fast

using full voltage rpm

for any meaningful leg input


something to consider

but 52 is my choice

p means parallel

tops and bottoms connected

essentially becomes larger single cell

have been thrust into deliveries

large fleet running around manhattan

lwb cargo bikes

bbshd

some pulling trailers too


perhaps illegal

but cops like ebikes

more than cars trucks


politicians wanna figure out

how to get paid


always vote out incumbents

and elected judges

not only cost complexity

9th ave around 50’s

fat tires definitely soften

so called bike lane

hard to suggest vendor

no idea what continent

fat tire bbshd

excellent combo

nyc roads rough

all terrain nice air ride

compared quality full suspension

less cost and complexity

commercial cargo bikes

running around nyc

bbshd

haul large battery too

excellent combination

they can parallel fine

frequently do similar


minor nit picking

any open connection

may reduce charge current

amperes same in series

10a is your bottleneck

total power as described 840w

someone consider offering

bbsxx controller rebuild service


gotta be many 02 03 cores

dead in the wild


bafang plays

controller games

phase wiring shorted

from controller

possibly blown fet

22 miles on 840wh if thats what actually have seems about right to me obviously last portion lower voltage if capacity further degrades perhaps attempt balancing leave on charger several days disconnect and reconnect several times post final resting pack voltage amazon 28ah pack comes with bms life ...

if jumping correctly

no pas or throttle action

inclined towards duff controller

or perhaps internal wiring

check moisture ingress

3 dollar chain wear gauge replace 10 15 dollar chain any measurable wear sprockets will last very long time my chain interval about 1000 miles large hubs using bicycle rims will not lace strong durable wheels even best spokes and lace job eventually fail heavy commuter experience something gotta giv...

recheck all connections


correctly bypass display

jumpstart motor controller

works under throttle

or top pas level

may help

rule in out display


test health of battery pack

not only voltage

current under load

10000 miles cute

nothing wrong learning from others

however doing final proof



bbshd do not shred hardtails in six months

utter nonsense

apparently offered by think not facts



good luck op

some only think

others actually do

the later know