TonyWilliams
Well-known member
MODERATORS NOTE: This thread was split off of this thread: ICE Breaker J1772 extension cable for sale. 30A 52A, 30 foot. Please continue technical discussion here and sales discussion there. -drees
Brad, those plugs are NOT rated at 70 amp by any recognized body. Actually, DoStar derated them to 50 amps after presenting them for UL approval.
How do I know? I've sold well over 1000 of them.
It's nice to see that our original JLong is being copied yet again! That's great for the EV movement, but unfortunately, every example that I've seen has come up short on SAFETY.
So, here's a few simple questions:
1) Do you pass through the proximity wire?
2) Do you solder the pins?
3) What gauge is your wire?
We've been selling our fully J1772 compliant JLong for almost two years now, and I have to say that it is flattering to be copied so many times!
Our's never has an asterisk or a liability disclaimer... it's actually fully warranted. Also, it's rated at 40 amps, instead of the lesser 30 amps of our competition.
http://shop.quickchargepower.com/JLONG-40-Amp-J1772-extension-cable-JL40A.htm" onclick="window.open(this.href);return false;
JLong vs competition
For our JLong J1772 extension, we started by designing the very best cable for the job, and we have those cables built in California, USA. Since we pioneered this niche product, there are now at least two others available, both using preassembled Chinese plugs and cables that were intended for EVSE charging stations only.
We recognize that there's always a market for the cheaper product, but unfortunately we won't use products that don't meet our high standards:
1) Our JLong is the only J1772 extension that gives you 100% of the protections of J1772 (proximity disconnect, ground fault, pilot signal, etc). I personally think it's absolutely critical not to substitute lower price and quality for safety standards. Others may claim that they follow all J1772 protocols, but only JLong does.
The Chinese cables used by competitors do not carry proximity detection at all. The reason that they can't do this is because the cables don't even have the wire inside to perform this critical task. That means that every time you disconnect the J1772 charge station from the extension while the car is charging, there will be a "hot" disconnect which can damage equipment and cause a spark / arcing. Not my idea of a smart or safe design.
2) Because we build our own cables, we make numerous improvements. First, all the power wires are doubled... instead of two, we have four parallel power wires in the cable. This allows us to build an ultra light weight and super flexible cable. Secondly, we include all the communication wires necessary for safety. There are actually 8 conductors in each of our cable assemblies. The Chinese cables use half.
3) Chinese cables are HEAVY and clunky, and not very flexible. We don't even offer them anymore as a resale item.
4) At least one competitor was soldering his wires to the power pins. We absolutely have NEVER done this, even from the first one built. All of our connections are crimped to aerospace / mil-spec standards using commercial air powered and calibrated tooling, dies and locators. We have never had a failure of these parts. As you might imagine, failure in this area can burn your car or house down. I just learned of a homemade charging station wiring job that caused almost $3000 in damages just yesterday, and this was a VERY experienced hobbyist.
5) The competition doesn't use a handle at all on the inlet end. NONE. There is a cheap plastic "dust cap" that I can compress with my fingers. Our inlet handle is built from 6061-T6 aircraft grade aluminum alloy, cut on a water jet, and TIG welded. Then, we powder coat with a slip resistant finish and laser etch our logo. You can DRIVE YOUR CAR OVER OUR HANDLE and it will not crush. Since these are designed to lay on the ground, this seemed like a smart design requirement to us.
6) The competition uses either a 32 amp version or 50 amp version. Our current model is 40 amp capable, which means that every known J1772 vehicle in the world can safely use it. Tesla Model S/3/X can also use JLong with the Tesla adaptor, however "twin charger" equipped cars and Roadster will have to limit their charge rate to 40 amps.
Within a few months, we will have an 80 amp JLong (the maximum of the J1772 standard in USA only... the rest of the world only recognizes 30 amp maximum).
7) Again, because we build our own cables, you can get JLong in any length you like. Believe it or not, 40 feet is the most popular (and we have custom built longer). The Chinese cables only come in 25 feet or less.
Here are some of the industry articles written about JLong:
http://insideevs.com/review-quick-charge-power-JLong" onclick="window.open(this.href);return false;
http://bmwi3.blogspot.com/2015/03/featured-ev-product-jlong.html" onclick="window.open(this.href);return false;
http://www.greencarreports.com/news/1095906_electric-car-charging-station-blocked-get-an-extension-cord" onclick="window.open(this.href);return false;
shop.quickchargepower.com/JLONG-40-Amp-J1772-extension-cable-JL40A.htm
40 feet - $349 retail
30 feet - $319 retail
20 feet - $279 retail
10 feet - $229 retail
5 feet - $199 retail
Brad, those plugs are NOT rated at 70 amp by any recognized body. Actually, DoStar derated them to 50 amps after presenting them for UL approval.
How do I know? I've sold well over 1000 of them.
It's nice to see that our original JLong is being copied yet again! That's great for the EV movement, but unfortunately, every example that I've seen has come up short on SAFETY.
So, here's a few simple questions:
1) Do you pass through the proximity wire?
2) Do you solder the pins?
3) What gauge is your wire?
We've been selling our fully J1772 compliant JLong for almost two years now, and I have to say that it is flattering to be copied so many times!
Our's never has an asterisk or a liability disclaimer... it's actually fully warranted. Also, it's rated at 40 amps, instead of the lesser 30 amps of our competition.
http://shop.quickchargepower.com/JLONG-40-Amp-J1772-extension-cable-JL40A.htm" onclick="window.open(this.href);return false;
JLong vs competition
For our JLong J1772 extension, we started by designing the very best cable for the job, and we have those cables built in California, USA. Since we pioneered this niche product, there are now at least two others available, both using preassembled Chinese plugs and cables that were intended for EVSE charging stations only.
We recognize that there's always a market for the cheaper product, but unfortunately we won't use products that don't meet our high standards:
1) Our JLong is the only J1772 extension that gives you 100% of the protections of J1772 (proximity disconnect, ground fault, pilot signal, etc). I personally think it's absolutely critical not to substitute lower price and quality for safety standards. Others may claim that they follow all J1772 protocols, but only JLong does.
The Chinese cables used by competitors do not carry proximity detection at all. The reason that they can't do this is because the cables don't even have the wire inside to perform this critical task. That means that every time you disconnect the J1772 charge station from the extension while the car is charging, there will be a "hot" disconnect which can damage equipment and cause a spark / arcing. Not my idea of a smart or safe design.
2) Because we build our own cables, we make numerous improvements. First, all the power wires are doubled... instead of two, we have four parallel power wires in the cable. This allows us to build an ultra light weight and super flexible cable. Secondly, we include all the communication wires necessary for safety. There are actually 8 conductors in each of our cable assemblies. The Chinese cables use half.
3) Chinese cables are HEAVY and clunky, and not very flexible. We don't even offer them anymore as a resale item.
4) At least one competitor was soldering his wires to the power pins. We absolutely have NEVER done this, even from the first one built. All of our connections are crimped to aerospace / mil-spec standards using commercial air powered and calibrated tooling, dies and locators. We have never had a failure of these parts. As you might imagine, failure in this area can burn your car or house down. I just learned of a homemade charging station wiring job that caused almost $3000 in damages just yesterday, and this was a VERY experienced hobbyist.
5) The competition doesn't use a handle at all on the inlet end. NONE. There is a cheap plastic "dust cap" that I can compress with my fingers. Our inlet handle is built from 6061-T6 aircraft grade aluminum alloy, cut on a water jet, and TIG welded. Then, we powder coat with a slip resistant finish and laser etch our logo. You can DRIVE YOUR CAR OVER OUR HANDLE and it will not crush. Since these are designed to lay on the ground, this seemed like a smart design requirement to us.
6) The competition uses either a 32 amp version or 50 amp version. Our current model is 40 amp capable, which means that every known J1772 vehicle in the world can safely use it. Tesla Model S/3/X can also use JLong with the Tesla adaptor, however "twin charger" equipped cars and Roadster will have to limit their charge rate to 40 amps.
Within a few months, we will have an 80 amp JLong (the maximum of the J1772 standard in USA only... the rest of the world only recognizes 30 amp maximum).
7) Again, because we build our own cables, you can get JLong in any length you like. Believe it or not, 40 feet is the most popular (and we have custom built longer). The Chinese cables only come in 25 feet or less.
Here are some of the industry articles written about JLong:
http://insideevs.com/review-quick-charge-power-JLong" onclick="window.open(this.href);return false;
http://bmwi3.blogspot.com/2015/03/featured-ev-product-jlong.html" onclick="window.open(this.href);return false;
http://www.greencarreports.com/news/1095906_electric-car-charging-station-blocked-get-an-extension-cord" onclick="window.open(this.href);return false;
shop.quickchargepower.com/JLONG-40-Amp-J1772-extension-cable-JL40A.htm
40 feet - $349 retail
30 feet - $319 retail
20 feet - $279 retail
10 feet - $229 retail
5 feet - $199 retail