Where to get the Jackery 1500 DC Input Connector?

Hey everyone, I recently purchased a Jackery 1500 and I'm trying to figure out the DC input jack. It's still en route so I don't have it yet, but I managed to suss out the dimensions via their Japanese support site (it's not listed on the english one). The size is different from prior Jackerys, with a much thicker center pin (7.9mm x 5.5mm x 0.9mm on the old) and is instead 8.1mm x 5.5mm x 3.5mm.

There is an included adapter to the more common 7.9mm, but I'd like to make some of my own adapters that don't rely on this dongle. This is a weird size, and I haven't been able to find it anywhere (Mouser, Digikey, Newark, etc.) Any thoughts?

On a side note, I like the Japanese Jackery designs a little better. The handles fold down making the Jackery a nice little box! A bit more compact.

Ok, so I have a sneaking suspicion that they use a connector that closely resembles what a lot of electric scooters use(d):

I can't find out much about this connector either, but the dimensions look visually close. Anybody know about that connector?

I purchased, received, tested and reported on a source for both the larger input 7.9mm connector and the smaller DC output connectors. in another thread.

If you search on my username plus Jackery connector you should find it.

Found it......
https://diysolarforum.com/threads/whats-the-dc-connector-on-jackery-500.5966/page-3#post-238488

OnTheRoadAgain said:

I purchased, received, tested and reported on a source for both the larger input 7.9mm connector and the smaller DC output connectors. in another thread.

If you search on my username plus Jackery connector you should find it.

Found it......
https://diysolarforum.com/threads/whats-the-dc-connector-on-jackery-500.5966/page-3#post-238488

Click to expand...

That looks like it was for the Jackery 500, correct? The 1500 switched to a new DC input connector that differs from everything else on their product line.

csrussell said:

That looks like it was for the Jackery 500, correct? The 1500 switched to a new DC input connector that differs from everything else on their product line.

Click to expand...

Ok. I wasn't aware they changed the connectors.

Welp, I acquired one of those scooter chargers and while it's close the pin size is still too small.


Jackery on the left, scooter on the right. It fits but the center pin only makes contact if you wiggle the connector.

Close, but no cigar so the search continues.

-EDIT-
Ok, the Explorer above the 1000 comes with other connectors. The text below is only for Explorer 1000 and smaller.
- ———-
I have an brandnew Explorer 1000 and some Goal Zero stuff (a bunch of Yetis, solar panels, cords and more). The Jackery’s DC input connector is the same as Goal Zero. 8 mm. So I use all GZ equipment with the Jackery and it works perfect.

And the Solar Saga panel fits the charging port of the Yeti, but I must lightly sand the plastic of the plug. It‘s no problem, the Solar Saga charges the Yetis and Explorer perfect.

Also — look for GZ 8 mm equipment.

Yeah it kind of sucks, Jackery seems to be the only ones on the planet using this plug size. Their support hasn't replied to 2 of my e-mails and I'm really considering returning it to get a Bluetti AC200P. Being unable to acquire first or 3rd party accessories is really disheartening.

I forgot to mention that Jackery also didn't include an adapter to 7.9*5.5mm, apparently they stopped including it but didn't update their website/online manual which is really, really annoying.

I did figure out however, that the included "parallel" solar adapters (it's actually a serial adapter) can be shorted on one port and function as an adapter to 7.9*5.5mm. I haven't tested it fully however.

I contacted Jackery support via email and they will ship you an adapter if you can show them proof of recent purchase. They acknowledge that the adapter is different because they need to support higher rate charging, the center pin is larger. They call it the thin to thick adapter or the 8mm adapter. They said one is on the way, I'll post a pic when it arrives.

Here's the lame reply I received today from Jackery customer support:

"Thanks for choosing Jackery and contact us for your case.

We checked with our engineer that they told us we don't have the MC4-to-Jackery 1500 adapters.

but we can tell the input of Jackery is 8mm (8020 connector)."

I also requested the thin to thick adapter.

They may not have MC4 -> Jackery, but they have a normal 8mm to jackery 1500/2000 8mm (they call it 8mm thin to thick)
You should ask them to give you a 8mm small to large adapter, and get a separate MC4->normal 8mm, which you can then use the 8mm thin to thick to plug into the Jackery 1500/2000

That should work, I'm still waiting for the thin to thick:


"I am sorry that there is no stock of 8mm adapter available to send to you at the moment, it will be available Mid-July;

We will ship an adapter to you once it is available."

I received the thin to thick adapter and when I connected a brand new Goal Zero Boulder 200 Briefcase to the Jackery 1500, the max wattage I saw was 98 W (as shown on the Jackery display panel). Since I had two 100 W panels connected on a very bright sunny day, I expected to see closer to 200 W. I covered one panel and the wattage dropped to 78 W. I then moved the cover to the other panel, and the reading remained about 78 W. Does the adapter limit the input to less than 100 W? Why don't I see at least 150 W (as in 2 X 78 W)? Has anyone else seen this same behavior, and know of a fix?

kms said:

I received the thin to thick adapter and when I connected a brand new Goal Zero Boulder 200 Briefcase to the Jackery 1500, the max wattage I saw was 98 W (as shown on the Jackery display panel). Since I had two 100 W panels connected on a very bright sunny day, I expected to see closer to 200 W. I covered one panel and the wattage dropped to 78 W. I then moved the cover to the other panel, and the reading remained about 78 W. Does the adapter limit the input to less than 100 W? Why don't I see at least 150 W (as in 2 X 78 W)? Has anyone else seen this same behavior, and know of a fix?

Click to expand...

I've seen a similar drop in solar input. I'm using 8 gauge wire from the panels to the Jackery 1500 input, so I suspect the output drop is happening in the 8mm connector. In my case, I expected over 200 watts each from two (250W) panels. Instead, the total wattage has not exceeded 340 watts (170 watts per panel)

I just received my one free thin to thick adapter but haven't used it yet. But it means they are back in stock.

I have used a 120W eco worthy with the thin to thick adapter and got an 85W max. When I connect two in parallel before I recall getting nearly 2x the wattage around 140W at that time, so I don’t think the thin to thick has much of a effect.

If you get 78W with 1 and only 100W with two. Then it implies almost 50W of power loss which would melt that adapter pretty quickly, I don’t think the loss is happening there.

I noticed that the MPPT input of the jackery 1500 sometimes doesn’t settle into the optimum power level until a while later, it ramps up to some value quickly and then drops to 0, repeating a few seconds later. Usually it eventually gets it right but sometimes it settles at an unreasonably low value until you unplug and plug it back in. Have you tried to wait a few minutes and see? What if you wait a minute and then I plug and plug?

csrussell said:

I forgot to mention that Jackery also didn't include an adapter to 7.9*5.5mm, apparently they stopped including it but didn't update their website/online manual which is really, really annoying.

I did figure out however, that the included "parallel" solar adapters (it's actually a serial adapter) can be shorted on one port and function as an adapter to 7.9*5.5mm. I haven't tested it fully however.

Click to expand...

Spent a few frustrating hours trying to figure out why I wasn't getting any power from new panels before finally finding this post. Thanks a lot for sharing!

I was messing with those adapters too trying to make something work there. What do you mean short one of the ports, loop back from center pin to outer shielding -- or just cram a lump of tin foil in there?

nadafigment said:

Spent a few frustrating hours trying to figure out why I wasn't getting any power from new panels before finally finding this post. Thanks a lot for sharing!

I was messing with those adapters too trying to make something work there. What do you mean short one of the ports, loop back from center pin to outer shielding -- or just cram a lump of tin foil in there?

Click to expand...

Both would work. But since you are putting 8-10A through there, it would be probably more reliable to put a pig tail plug in there and connect the wires.

I wish they would just use standard plugs, nobody makes this 7.9mm with thick centre pin connector.

At least they should include 2 per power pack order, one for each input.

It's taken awhile for me to sort out the issues with the Jackery 1500. Evidently there are two versions of the 1500, the v1 (which I have) has two serial DC input ports that are 48V, 6.25A (48V*6.25A=300W) each. v2 has two parallel DC input ports of 24V, 12.5A (24Vx12.5A=300W). Since I have the v1 I'll limit my comments to that version.

According to the tech info on the GoalZero website, the Boulder 200 outputs between 14-22V, which corresponds to 14-9A. However the v1 Jackery 1500 input port can't handle that many amps, it's limited to 6.25A. So the max power range is going to be between (14V*6.25A=87.5W) to (22V*6.25A=137.5W). The 98W reported is probably reasonable if you take into consideration the limitations of the DC input port on the V1 1500.

When you covered up one of the panels, I'm guessing you were using something close to a Boulder 100, which is rated at 14-21.5V (7-4.65A). The max power range is going to go from 14V*6.25A=87.5W to 100W, with 100W first being hit around 16V. The 78W you reported when covering one panel is in line with these numbers, esp. since I'm not sure of the conditions you measured under.

This probably isn't what you wanted to hear, but I'm hoping I've come up with a solution (at least for myself...). I'm going to be testing a 200W Rockpals folding panel (not a sturdier panel like the Boulder 200, closer to a Nomad 200). It's rated at max 36V, 5.56A and theoretically should work with the v1 DC input (along with a thin-thick adapter, which Jackery sent me). Assuming the numbers I've been given are correct. Hooking up two of these to one port is probably a no-go since that would give you 72V (this is a serial port and the voltage is doubled if I understand their port setup correctly), so you'd need to use both ports with two panels. They're on sale right now on the Rockpals site for $100 off (I'm not affiliated with them in any way). Supposed to be here Monday but it's going to be cloudy on Monday so I'm not sure when I'll have a chance to test the setup. After I do I'll report back what I find out.

Hope this helps.

luckybadger said:

Evidently there are two versions of the 1500, the v1 (which I have) has two serial DC input ports that are 48V, 6.25A (48V*6.25A=300W) each. v2 has two parallel DC input ports of 24V, 12.5A (24Vx12.5A=300W). Since I have the v1 I'll limit my comments to that version.

Click to expand...

Very interesting… i think the V2 also has slightly larger capacity than V1. My 1500 says it has 1488wh but their website spec is over 1500wh. So V2 can take more current, but I assume max voltage is still 48v given the AC adapter still is the same. So while max power is still 300w, there is more flexibility to get to 300w since v2 allows 12A while v1 max at 6.25?

I have also observed that my jackery 1500 doesn’t seem to take more than 6-7A of current. I tested this with a 480V 12-48V variable voltage supply and noted accepted power increase with voltage, with the jackery not drawing more than 6A, I had expected it to have steady power and just pull more A when voltage is lower. The only exception is when the input voltage is around 12-14v, where it seems to draw more, maybe there is exception when it think it is being charged from a car cigarette adapter. I will need to do more experiment to check.

I connected a canada solar 315 panel (Vmp 33v, Imp 9.5A) and am surprised that the max power I got was around 190W. This now make sense if the max current is 6A.