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Author Topic: 12 V 15,000 mah Lithium-ion Battery Charger/Power Pack  (Read 4375 times)
KU3X
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Posts: 623




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« Reply #15 on: September 16, 2018, 01:55:16 PM »

This is what I have and here are my findings:
https://www.ebay.com/p/Portable-Power-Jump-Starter-Car-Battery-Booster-600a-Peak-18000mah-W-LCD-Screen/505304789?iid=302873024077&chn=ps

I got mine on Amazon for the same price.
I wanted to run my KX2 or KX3 off of it. The unit has small output jack so once can draw 12v / 16v / 19v off of it, selectable via menu.
Drawing 2 amps off of it, the voltage dropped 1/2 of a volt. I decided to order the optional cigarette adaptor to go on the high current output socket. I cut off the f/m socket on the adaptor and added Anderson Power Poles. Now I can draw high current from the unit and the voltage drop is only 1/10 of a volt.
As far as the 18,000 mah rating? I find it very questionable? I did not take mine apart but a friend of mine took his apart. He had a different unit but his also had a very high MAH rating. He found that the actual rating of his was about 1/3 of what was advertised. So take those ratings with a grain of salt.

If you are going to power a little QRP radio with it, they are great. Don't think of powering a radio like an IC7300 with it. That is, don't even try to transmit with 100 watts out. OK if you want to just receive with the 7300, but these things are more for QRP radios.

I needed one to carry around with me for my  motorcycle, the real reason I purchased mine. But it serves double duty.

Barry
 
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N8AUC
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Posts: 643




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« Reply #16 on: September 20, 2018, 10:24:09 AM »

For $58 you can't beat this.
https://www.harborfreight.com/3-in-1-portable-power-pack-with-jump-starter-62306.html

It's got a 12V, 17Ah SLA battery inside.
Runs my FT-817 all day. It'll run my FT-857D at 5W output for a few hours too.

It's not as good as the 42Ah battery box I built, but it's lighter and easier to grab and go for playing radio with a QRP rig.
And it costs a LOT less than the box I built.

73 de N8AUC
Eric

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N8AUC
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Posts: 643




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« Reply #17 on: September 20, 2018, 12:20:40 PM »

For reference, info on the battery box I built can be found here...

https://www.eham.net/ehamforum/smf/index.php/topic,120355.0.html

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K7RJB
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Posts: 253




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« Reply #18 on: December 20, 2018, 09:22:46 AM »

I am looking at the Bioenno batteries.

For the record they are not Li Io

They are LiFePo and they don't share the thermo nuclear properties that the LiIo are famous for.

Half the weight of a SLA and significantly more power available, and no fire risk.
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N8AUC
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Posts: 643




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« Reply #19 on: March 21, 2019, 06:43:49 AM »

I ended up buying one of these to go with my FT-817.

https://www.amazon.com/TalentCell-Rechargeable-11000mAh-20000mAh-Portable/dp/B01337QXMA/ref=pd_sim_236_5/146-1155142-3458649?_encoding=UTF8&pd_rd_i=B01337QXMA&pd_rd_r=7621a492-4bde-11e9-918e-9331052c3a54&pd_rd_w=y2Kng&pd_rd_wg=5aTej&pf_rd_p=90485860-83e9-4fd9-b838-b28a9b7fda30&pf_rd_r=D6RVVNYQ7JNAQX47950R&psc=1&refRID=D6RVVNYQ7JNAQX47950R

$50 for a 12V 8.3Ah rechargeable Li-Ion power bank.
Works really well. Also has a 9V output (not sure what I'd use that for), and a 5 volt USB output for charging cell phones and such.

73 de N8AUC
Eric
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K7RBW
Member

Posts: 525




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« Reply #20 on: March 22, 2019, 05:53:35 AM »

I ended up buying one of these to go with my FT-817.

https://www.amazon.com/TalentCell-Rechargeable-11000mAh-20000mAh-Portable/dp/B01337QXMA/ref=pd_sim_236_5/146-1155142-3458649?_encoding=UTF8&pd_rd_i=B01337QXMA&pd_rd_r=7621a492-4bde-11e9-918e-9331052c3a54&pd_rd_w=y2Kng&pd_rd_wg=5aTej&pf_rd_p=90485860-83e9-4fd9-b838-b28a9b7fda30&pf_rd_r=D6RVVNYQ7JNAQX47950R&psc=1&refRID=D6RVVNYQ7JNAQX47950R

$50 for a 12V 8.3Ah rechargeable Li-Ion power bank.
Works really well. Also has a 9V output (not sure what I'd use that for), and a 5 volt USB output for charging cell phones and such.

73 de N8AUC
Eric


Thanks for the info! I’ve been looking at those for my 817, too.
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N1KWW
Member

Posts: 34




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« Reply #21 on: May 24, 2019, 06:07:53 PM »

Many of these small lithium batteries are capable of jump starting cars. Amazon has one 6.2 x 1.9 x 2.4 and 12 V 15,000 mah.
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EI3IBB
Member

Posts: 26




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« Reply #22 on: June 10, 2019, 02:18:47 PM »

Hobbyking sell good quality LiPO from Turnigy, you can make your own for about 50-60 USD but they need good RC charger + power supply + cell monitoring in the field.

Charge in a fireproof location and store in a fireproof location but I have not had any issues with Hobby king Lipo. They could run a 100 watt rig also no problem , obviously this will need more Ah.

Get the hard case LIPo or make your own case , can also get LiFeP04 from Hobby king but LiFe_04 is heavier and bulkier and noone really uses it these days, I used it for my electric bike projects but when I discovered LiPo I never looked back.

I use the Xiegu X5105 portable and it has good battery life.
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