Evening all, I have read the 4 or so previous posts about charging drone batteries (and controllers) when camping, hiking or otherwise not being near mains electricity. I noted though, that some posts are a few years old, and technology has progressed. I have (well, in 2 days time hopefully) the …

if you build your packs yourself, or can do simple soldering / spot welding - a 15 AH (based on 21700 cells) pack 6S with a simple transformer can provide you 45w via USB: [WhatsApp Image 2026-07-08 at 16.02.00]

[image] Seadog: I now fancy an Avatar 2, I think I need treatment. I think the issue is too much is going on around you, confusing you and overwhelming you. Go outside to a quite place where nobody can bother or distract you. You though may get bored, so may as well take a drone with you. …

[image] ORB_FPV: if you build your packs yourself, or can do simple soldering / spot welding - a 15 AH (based on 21700 cells) pack 6S with a simple transformer can provide you 45w via USB: I had wondered myself how good two 12v 7A sealed lead acid batteries would do. I think the constant ful…

I have to admit, I am not very proficient on the leaded acid specificities, but LI-ION are ok - I have had this pack for a long time and used it sporadically on the field to charge my LI-POs for my custom build FPV quads. Works like a charm and still keeps a good capacity. @bmsleight - I forgot the …

[image] ORB_FPV: I forgot the type of battery you have in your charging case 12V 30Ah Lithium LiFePO4 Battery

[image] So... what's on your bench at the moment? chequered_flagRacing Quads, Self-builds & FPV A flight case power unit. Just waiting for last parts to arrive on slow boat. 30Ah, 12V LiFePO4 Lithium Battery. Two channel charger - isdt [ ISDT P10 250W Dual DC…

I got this one off Temu and it works a treat. I use it for charging my DJI drone batteries as well as powering my smart telescopes. It will also charge my MacBook Pro so I think for the money it is worth it. My 5-8w solar panels will charge it as well … albeit very slowly!

I use the Jackary 2000 power bank with solar panels. It’s a decent bit of kit to be fair.

[image] WooleySheep: I have a EV car that has a 13Amp 3-pin socket built into the back seats, but also don’t want to keep running over to my car to charge batteries, then find I can’t get home! (Although sure the car battery can cope with a few drone battery charges!). WTF you are sorted, a 5…

[image] SparkyFPV: WTF you are sorted, a 50 kWh battery would last us all for the BM :grinning_face: and I bet your car has a larger battery There is a fast charger about 10 mins away at a garden centre on the A14 that I charged mine up at last time So gutted mine hasn’t got V2L :sob: It ha…

Charging batteries away from Mains electrcity

Questions & Answers

bmsleight 8 July 2026 15:34 27