13 Years manufacturer GZD-3 Series DC Screen Wholesale to Finland


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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GZD-3 series of nickel-cadmium batteries DC panel is the new generation of products created accord to power industry standard “DL / T459-92″,converged the advantages of similar products in China, combined with the actual experience of domestic operating units and applicable to the actual situation in China and abroad.

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Playlist with more battery videos: https://www.youtube.com/playlist?list=PL59mIOWSOm9qrSglqe18AlYfBJRXLdduj

Check out the first video showing how I spot welded this battery: https://www.youtube.com/watch?v=Rr2_a…

Check out video 2 where I show the next steps wiring the BMS to the cells and the charge/discharge connectors: https://www.youtube.com/watch?v=qTLvG…

I used LG MJ1 3500mAh 18650 cells to make this 52v 17.5Ah 14s 5p pack designed for high performance & long range in a compact size!

at 0:57
On left is a 13s BMS that I used as example only
On right is a slightly different 14s BMS with 15 wires (14 balancing + second B- wire)

This video was recorded at eMax-eBikes Australia http://www.emax-ebikes.com.au/

If you’re making your own battery, find below some very handy links:
LG MJ1 18650 cells 3500mAh 10A discharge http://www.emax-ebikes.com.au/store/p59/LG_MJ1_3500mAh_18650_Cells.html
Battery spacers, cell holders, separators = http://www.batterysupports.com/10pc-battery-spacer-seperator-3x-25650-radiating-battery-holder-p-332.html
Silicone wire = http://www.batterysupports.com/16awg-flexible-silicone-wire-1m-red-1m-black-heatproof-200c-p-319.html
Heat resistant insulating adhesive tape = http://www.batterysupports.com/battery-transparent-electronic-insulated-adhesive-tape-p-320.html
Adhesive Insulator Paper = http://www.batterysupports.com/8x-fish-adhesive-insulator-paper-electrical-battery-insulating-p-469.html
80x Battery insulators paper adhesive = http://www.batterysupports.com/80pcs-cardboard-1x-18650-battery-insulators-electrical-adhesive-p-347.html
They also sell extremely powerful BMS (up to 150A), they have:
10s 36v = http://www.batterysupports.com/lion-lipo-nbsp-36v-nbsp-10s-c-32_41.html
13s 48v = http://www.batterysupports.com/lion-lipo-nbsp-48v-nbsp-13s-c-32_43.html
14s 52v = you have to email them and request it

BestTech Power http://bestechpower.com
SmartTEC http://www.szsmartec.com/
You can also get BMS on Aliexpress:
14s 30A BMS = http://www.aliexpress.com/item/51-8V-30A-BMS-14S-PCM-Lithium-ion-Battery-Management-System/1342816874.html?spm=2114.01010208.3.10.5WgkmV&ws_ab_test=searchweb201556_9,searchweb201602_1_10017_10005_10006_10034_10021_507_10022_10020_10018_10019,searchweb201603_9&btsid=195f43c8-6994-4cd2-9854-33abfbce7d48
14s 150A BMS = http://www.aliexpress.com/item/14S-58-8V-Lithium-ion-18650-battery-lithium-polymer-battery-BMS-with-200A-constant-current-for/32467710591.html?spm=2114.01010208.3.65.hqcLS0&ws_ab_test=searchweb201556_9,searchweb201602_1_10017_10005_10006_10034_10021_507_10022_10020_10018_10019,searchweb201603_9&btsid=195f43c8-6994-4cd2-9854-33abfbce7d48
10s 36v BMS = http://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20160417133838&SearchText=bms+36v+10s

Have fun shopping… don’t forget the FIRE EXTINGUISHER and protective glasses!

My Fast Electric Bicycle setup:

•Bafang BBSHD 1000w 48v (1455watts peak)
•Custom controller settings with 100% throttle enabled at PAS-0 and no speed limit (unloaded wheel spinning at 102kmh with 46T)
•46 tooth chainring (74.1km/h top speed on flat)
•189 RPM at 58.8v (factory settings 160 RPM maximum)
•4.8kg motor

•Homemade 14s 5p 58.8v 14.5Ah battery pack capacity
•1,5 hours 57.1v fast charge (6A 350w charger set at 57.8v)
•2,5 hours 58.8v charge (6A 350w charger set at 59.2v)
•3.65kg battery pack transported inside my backpack connected to the bike with XT90-S high discharge anti-spark connector.
•70x NCR18650PF Panasonic High Current cells
•Waterproof “bare cells” pack style for better cooling
•No BMS for 100% charge (4.2v per cell) = 100% performance!!
•Range (with BBS02 motor): +/-26km in the city / 36km continuous full throttle with only few stops

•V3 Cycle Analyst with with 1.00m ohms shunt
•Bafang C965 5 buttons display
•15 watts LED headlight
•Waterproof red LED voltmeter to monitor battery sag and performance during the ride.

Throttle / Brake Sensor:
•Left thumb throttle (connected to the BBSHD controller) adapted to road bike handlebar, set up between the brake lever and the bar (almost invisible) mounted on a copper T-joint (used for plumbing, same thickness as the handlebar) the long bit cut in half riveted to the bar with the other bit sticking out enough to mount the throttle.
•Magnetic cut-off sensor in line connected to my mechanical rear brakes

•9kg Trek Road Bike
•Easton (rear) Shimano (front) performance 700c racing wheels with aerodynamic flat spokes
•Mechanical brakes

The fourth event on the road to the Forrest Wood Cup finds JT Kenney and Chad Grigsby at Beaver Lake, a perennial stop on the Walmart FLW Tour. Now over halfway through the season, the guys need to make the right moves to qualify for the Cup. Can they succeed or will they falter?

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