@hacks4pancakes the only battery packs that I'm aware of that do 12v out (like a car cigarette adapter) is the anker powerhouse (I have an 800 ii, and there are larger)
@Viss giant is fine, hence the very oddly specific question
@hacks4pancakes oh! well, then in that case, my anker powerhouse is pretty excellent. it comes camping with the local crew out here. powers lights, sound, an iceco fridge (via 12 volt!). I need an excuse to sell it so I can buy the next size up >:D
@hacks4pancakes if you wanna go ultramode, i recently learned about the bluetti series of devices - but those are like.. mega. like, power your house in case of an outage. (i want those too. because i am a crazyperson)
@Viss @hacks4pancakes Before you pull the trigger on a Bluetti, do a compare/contrast with the Ecoflow line. I've been really pleased with my Delta and River to power my camper van. The Delta can pull in 1kw AC to recharge from zero very quickly.
@kyle @hacks4pancakes also it appears as though the ecoflow doesn't ahve the 30amp nema twistlock plugs for output, so I can't hook it into my existing house energy storage system. The bluetti does 240v 30amp out, which is attractive, because thats what my powerwalls run
@Viss @hacks4pancakes Yeah for that you'd have to bump up to the Delta Pro line, which is heavy enough they added wheels.
@hacks4pancakes @kyle ah! that looks like a custom jobbie made for celestron gear. I've only seen a battery pack with 12v out in cases where there's a cigarette lighter adapter - but the smallest anker powerhouse would certainly work - you'd just hafta wire up a barrel plug to a lighter adapter, but it would totally work!
@hacks4pancakes @kyle actually that may make life even easier - if its USB on one end, that presumes its 5 volt, and so long as the usb port it plugs into provides sufficient amperage, you're good to go!
unless celestron did the nasty, and is using "not 5 volts but a usb port anyway", which could kill any normal usb device plugged into it
@hacks4pancakes @kyle oh wow ok. if it were me, I would just get this:
https://www.amazon.com/Anker-Powerhouse-Rechargeable-Generator-Emergencies/dp/B07DDHC5MV/ref=sr_1_6
and then build a cable myself out of a barrel connector that fits the telescope and a car lighter adapter.
@hacks4pancakes @kyle once you decide "i'm ok with a 2 minute solder job", suddenly lots of interesting options surface :D
@hacks4pancakes @kyle i have done this sorta thing a handful of times - taken some weirdo-jank custom connector and replaced it with a common one. MOSTLY into xt60 connectors (Cuz i have a trillion of them, because quads), and having "standardized connections on shit with the same voltage" is super great. everything becomes plug and play :D
@Viss @hacks4pancakes @kyle homemade jank I use for camping. Converted a Ryobi charger to output 12V from 18V battery. I standardize on powerwerx fittings. And yes, I can charge the 18V battery from 12V as well, just not at the same time as using the 12V out.
The Ryobi batteries have the BMS built-in and I can run my 12V fairy lights all night on a single battery, and recharge during the day.
I try to keep all of my power sources as multi-tasking as possible. Since I am locked in to the ryobi ecosystem on battery cost, I might as well make the most of it.
@Viss @hacks4pancakes @kyle what about 5min? Can you use flux and / or clamps in a 2min job?
@spmatich @hacks4pancakes @kyle my solder station is one of those dual-hosed jobbies that has a heat gun attached, so for me its trivial to do two wires and some heatshrink quickly.
@hacks4pancakes @Viss One advantage your device has over some of the devices we are recommending is that your device meets FAA regs for carry-on. Is that a requirement you'd have for a replacement?
@hacks4pancakes @Viss Maxoak (the company that makes the Bluetti Viss mentioned before) does make a smaller capacity model that is similar to what you want to replace: https://www.amazon.com/MAXOAK-50000mAh-Portable-Charger-External/dp/B00YP823NA/
Unclear whether it meets FAA regulations though. I think 185Wh might go above carry-on regulations.
@kyle @hacks4pancakes ive taken batteries bigger than this on planes and nobody complained :D
@hacks4pancakes @kyle @Viss Are you sure it's 12v? That page references '5V DC @ 2100mA' for 'USB Charging Port 1 Output:'
@musing_sys @Viss @kyle it does both. The thing I need to power is 12vdc.
@hacks4pancakes @Viss @kyle Something like https://www.amazon.ca/TalentCell-Rechargeable-3000mAh-Lithium-External/dp/B01M7Z9Z1N/ref=sr_1_9?keywords=battery+pack+12v+dc+output&qid=1673468085&sprefix=battery+pack+12v%2Caps%2C112&sr=8-9 - specifically states 'also runs robotic telescopes fine. '
@musing_sys @Viss @kyle I like that one because I don't have to build a cable
@hacks4pancakes @Viss @kyle Yeah, you're busy enough without having to create a new connector
@musing_sys @Viss @kyle weellll the thing is with a lot of these (if you look at the competitors in search) is that many won't meet FAA guidelines and most don't have a battery status display. This one appears to, though.
@hacks4pancakes @musing_sys @Viss @kyle
USB C PD with an appropriate trigger cable (https://smile.amazon.com/gp/product/B08NTVLZH7/) (and possibly a size adapter) will do 12v @ 3A. Apparently not *all* USB PD chargers or power banks will do 12v, but all of the "reputable name brand" ones I've looked at do.
If you happen to have any DeWalt 20V tools, check out their DCB094. It's a 100W bidirectional USB PD adapter for their battery packs and I can confirm it outputs 12v @ 3A from the cables linked above. Other tool brands may have something similar.
@kyle @hacks4pancakes my venn-diagram-center-oval is "i can take this camping and its not so heavy its immobile" and "i can run stuff for 2-3 days and I don't HAVE to have solar panels".
the anker powerhouse 800 ii is like, 85% of the way there. it can only do 500 watt out max