Search found 4513 matches

by DrkAngel
Nov 29 2019 11:39pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1681
Views: 504902

Re: Homemade Battery Packs

Bargain! Cells or 36V 5.1Ah bricks x 10 @ $24.99 each.
36V 5.1Ah

Limited time super bargains for this weekend!
by DrkAngel
Nov 29 2019 2:00am
Forum: Battery Technology
Topic: Optimal Charge Voltage - (LiCo)
Replies: 38
Views: 4469

Re: Optimal Charge Voltage - (LiCo)

. .... 4.20V vs 4.10V New 2568 - 2356 - 8.26% 300 2416 - 2299 - 4.85% 500 2318 - 2259 - 2,55% 800 2158 - 2148 - .47% 1000 2103 - 2113 + .53% 1200 2095 - 2061 - 1.63% 1500 2056 - 2035 - 1.03% 4.10V charged after 1000 cycles actually has better capacity than the 4.20V charged. However, the 4.20V char...
by DrkAngel
Nov 29 2019 12:37am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5657
Views: 487798

Re: new eZip motor

You can use Google Maps to show Bicycle trails, user friendly roads etc - Canton
-
by DrkAngel
Nov 28 2019 10:20pm
Forum: Battery Technology
Topic: Optimal Charge Voltage - (LiCo)
Replies: 38
Views: 4469

Re: Optimal Charge Voltage - (LiCo)

. Was researching a cell type and found a manufacturer who tested 4.20V vs 4.10V cycling. 4.2 VS 4.1v CYCLE LIFE.jpg Through near 700 cycles, 4.20v charged capacity degradation was >200% that of the 4.10V charged. Contrary to assertions of some, "time setting at full charged voltage" seems not a maj...
by DrkAngel
Nov 19 2019 4:26am
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

Official tally-weight was 1399 pounds of vegetables from the pantry garden, does not include the many hundreds of pounds from the family beds. Well, I'm sure I sampled more than a pound of Cherry Tomatoes, so let's say 1400lb+. Tomato plants shriveling up and shedding the last of the small green Tom...
by DrkAngel
Nov 18 2019 5:54am
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)

COB LED teardown:



Save you from tearing yours apart?
.
by DrkAngel
Nov 17 2019 5:49am
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1681
Views: 504902

Re: Homemade Battery Packs

Just got a case of new Samsung ICR18650-26F 120 @ $1 each (plus shipping) from US Nice items, with identical voltage. Modules seem not "powered", might require some circuit to additional contacts to "power on" the battery. Shame, have use for some batteries with protection circuit. Will try to keep...
by DrkAngel
Nov 17 2019 5:25am
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)

Proper heatsinking is essential. " LED lights are designed to function in temperatures of -25° to 140°F, making them suitable for most indoor and outdoor LED applications." LED temp.jpg White LED Cob temp above 55ºC 131ºF reduces brightness and lifespan. Owning a computer shop I have a large box of ...
by DrkAngel
Nov 16 2019 5:30am
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: E-39 / 4U 65w CFL Ballast

Careful, heat permanently degrades ≫ kills LEDs! (High voltage too) Damage evident by reduced watt usage. And yes, important to not look directly at brilliant LEDs! Building a "Sun" with multiple 50w in heavy Stainless Steel globed fixture, still, don't stare at the Sun ... (Still looking for small ...
by DrkAngel
Nov 15 2019 8:28am
Forum: E-Bike General Discussion
Topic: Winterized
Replies: 90
Views: 17194

Re: Winterized

Prepping for Winter 2019-20 Need to take 3 x 36V 4.4Ah Hoverboard batteries out of "bag" and build into eZip battery case. Built 1 already, but sold to neighbor who needed it for climbing hill to new home. "Stainless Steel" chain from China is a rusted mess! Need to replace! Geared motor to get "Ru...
by DrkAngel
Nov 15 2019 6:48am
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1681
Views: 504902

Re: Homemade Battery Packs

Just got a case of new Samsung ICR18650-26F 120 @ $1 each (plus shipping) from US https://cdn.shopify.com/s/files/1/2398/3077/products/PIC_2_2_1024x1024.png?v=1573165717 Sold out - but have restocked several times! Cells are rated at 2C max discharge, which is great for most of my builds. Typical ar...
by DrkAngel
Nov 14 2019 10:02am
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

Garden is done, till Spring.
Highlights?
Made up some slide shows of:
High Tunnel Construction
High Tunnel growth August - November
Tomato growth June- September
Peppers growth June - September

Facebook page Slideshows
by DrkAngel
Nov 14 2019 9:31am
Forum: E-Bike General Discussion
Topic: Snow Beast Refurb
Replies: 39
Views: 6325

Re: Snow Beast Refurb

.
...
Cat 12 Year old Snow Beast looks most like!
Bear-Cat.jpg
Bear-Cat.jpg (115.77 KiB) Viewed 979 times
by DrkAngel
Nov 14 2019 8:52am
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: E-39 / 4U 65w CFL Ballast

12V - price, power supply, heavy gauge wire, line drop ... 110VAC modules looks better in every way, except more intense points of light. 3 - 50W modules cost half as much as the 1 - 160W 12V module. Could put 6 in the same area, 300w 110VAC same price at 160W 12VDC, using mains voltage over light g...
by DrkAngel
Nov 13 2019 5:36pm
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: E-39 / 4U 65w CFL Ballast

Heatsinking will definitely become advisable as voltage is increased to 12V+, monitor closely! 200w into power supply is 80% efficient = 160w 12V 40w heat. 160w LED is ~20% efficient = 32w light 128w heat. 110VAC COB typically use a bridge rectifier and small cap(?) to push ~158DC through ~48s LED....
by DrkAngel
Nov 13 2019 2:28am
Forum: General Discussion
Topic: LED Lighting projects (was E-39 / 4U 65w CFL Ballast)
Replies: 32
Views: 4853

Re: E-39 / 4U 65w CFL Ballast

Any computer PS should supply a good 12V high Amps, I stocked up on Dell DA-2's for 12V 18A in a nice package, about $10 each in quantity. LED panel might draw 160w at 14V but likely less than 60w at 11V. Voltage >> brightness is more exponential than linear! Higher voltage permanently dims LEDs, so...
by DrkAngel
Nov 13 2019 1:48am
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

"Pollen "dies" quickly at 80ºF+". 85ºF and 90ºF Thermostats for fans will be set near roof, leaving temp at plants noticeably lower, with natural (unpowered) convection for milder temps. Having suffered multiple nights in the single digits Fahrenheit, everything except perennial herbs should be dead...
by DrkAngel
Nov 12 2019 9:46am
Forum: E-Bike General Discussion
Topic: Snow Beast Refurb
Replies: 39
Views: 6325

Re: Snow Beast Refurb

Oh crap! Been so busy ... forgot to mind the snow, Snow on the side streets and slush on the mains this morning! Don't remember where I stored the shovel, think I know where the salt is, been kicking it every time I delve into deep storage ... will need hammer to break it from solid mass to spreadab...
by DrkAngel
Nov 11 2019 9:19am
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5657
Views: 487798

Re: new eZip motor

latecurtis wrote:
Nov 10 2019 9:22pm
As the Hub Motor Turns slower and the Lipo Fire Burns dimmer. Try not to feel old. Can we reverse aging ??? Imagine that!!
Well, with proper diet and exercise you can extend and better enjoy your life ... or prolong the misery ...
by DrkAngel
Nov 11 2019 8:38am
Forum: Battery Technology
Topic: Slumming With SLA (24V - 36V - 48V)
Replies: 7
Views: 1379

Re: Slumming With SLA (24V - 36V - 48V)

Little improvement from 2nd week+ on De-sulfator. Battery 1 - 12.5Ah from 60Ah battery (21%) Let charge on desulfate setting for 1 week Battery 1.1 - 21.25Ah from 60Ah battery (35.4%) A 70% usable capacity increase from 1 week on desulfator! Will test weekly and post up results. Battery 1.2 - 22.5Ah...
by DrkAngel
Nov 11 2019 7:45am
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

. ... Greenhouse Progress - Season 1 Down in the teens, too much cold! High Tunnel not designed for prolonged freezing, effective for frosts and brief cold ... Basil all frozen and many of the Tomatoes and Peppers were killed, everything except some Herbs took damage. High Tunnel provided a 5-6 wee...
by DrkAngel
Nov 10 2019 7:48pm
Forum: E-Bike General Discussion
Topic: new eZip motor
Replies: 5657
Views: 487798

Re: new eZip motor

You can probably fix your money, and health, woes by giving up cigarettes and beer?
by DrkAngel
Nov 09 2019 11:11am
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

Tried to distribute the ripe and, as much as possible, the Green Tomatoes. Everything with some color was matched and placed in separate bags with an Apple, or 2. Variety was from nearly ripe to the leftovers at green, with no color. Will report on degree of success and time required from each degre...
by DrkAngel
Nov 08 2019 11:43pm
Forum: General Discussion
Topic: Raised Bed Gardening - Cement Blocks > Greenhouse!
Replies: 264
Views: 36591

Re: Raised Bed Gardening - Cement Blocks > Greenhouse!

Running 1750w of electric heat and a fan to distribute it. Hoping to keep everything alive through the night, tomorrow colder, not getting above freezing and into the teens at night. Will be harvesting out for tomorrows distribution including Green Tomatoes (fried green Tomatoes is a hick delicacy)...
by DrkAngel
Nov 08 2019 10:13pm
Forum: E-Bike General Discussion
Topic: Watseka XP Resurrection Nakto too?
Replies: 8
Views: 1231

Re: Watseka XP Resurrection?

Been riding my refurbed Watseka most of the Summer ... Just picked up newer version, the NAKTO City Electric Bicycle CAMEL Women 26" Black. Nakto.jpg Complete with plastic basket. I thought the Watseka was in bad shape ... this is a truish Halloween comedy of horrors! But 1st, gave the guy $50 for a...