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  1. riumiybe

    My LIPO is acting weird.... Is this DANGEROUS??!!

    I am planning to fly my FPV drone this weekend, so I pulled out a lipo I left in Storage voltage (3.78V) and checked the voltage. Overall voltage was 22.1V which seems a little low. Then I checked the balance and it came out 1 cell 3.54V 2 cell 3.65V 3 cell 3.71V 4 cell 3.73V 5 cell 3.72V 6 cell...
  2. E

    internal resistance of battery

    Hi! I wonder how important is the internal resistance(ohm) of batteries? During changing, an ISDT charger shows resistance per cell. Some shows 10-15, and other shows 20-30. Could you tell beyond certain value could be dangerous or not efficient to use anymore, etc?
  3. Fast and Curious

    Battery or charger issue

    Here is the issue, 6th cell of 6s batteries is over charging to 4.29 volts. How bad is it, could I get a few important flights in without damaging it? Feel free to ask any questions. Thanks
  4. E

    Lipo Battery Short

    So I was flying the drone and the balance connector went through the rotors causing some of the leads to short. Seeing as I need a new set of underwear after the experience do I need to buy a new battery aswell? All the cells are at a good voltage - about 3.7V each so can I just resolder them...
  5. E

    Battery at 2.7V for 3 weeks. What should I do?

    I have a 4s 75C lipo battery and one of the cells is at 2.7V. I have ordered an ISDT Q6 nano thanks to recommendations from the forum but it's going to take a couple of weeks to come. In total it will have been at 2.7V for 3 weeks and I have no way to charge it until my new charger turns up. The...
  6. E

    What do we think about this battery charger?

    I’m trying to find a good lipo battery charger that won’t drain my bank account (£30-50?) For my 4s 75C lipo batteries. I want to be able to storage charge and I have a cell at the moment at 2.7V so I’ll need to slow charge that aswell. Does anyone have any recommendations? I found this one on...
  7. E

    Eachine Battery Charger HELP!!

    I have the Eachine battery charger which I use to charge my XT60 75C 4S battery for my Eachine Wizard X200S drone - Eachine Wizard X220S FPV Racer RC Drone Spare Part 4S 14.8V Battery Charger When I plugged my battery into it there was a spark and a burning smell and the charger no longer...
  8. Reddley

    Emax Drone Battery issues, figured it out.

    I purchased the Emax Hawk Pro one month ago. The battery's I got for it are the Zee 4s 120c "Graphene" Lipo two pack, and I have an issue and a question I need help with. So from all of my knowledge of lipo battery's are that each cell is 3.7v and is dead at 3.0v based on all of the Traxxas and...
  9. C

    Lipo battery help

    Hello everyone, I’ve been flying for a bit on 5s batterys and it’s nice but I wanted something more casual so I picked up two 4s Tattu Rline version 2.0 batterys. Today when I went out to fly them both reported normal voltage’s on all cells on my buzzer. About a minute into the flight my buzzer...
  10. T

    Which battery to use??Need help

    I am making a 250mm 3d printed fpv quad. Weighs 600g without battery. Tmotor 2207 2250kv motor used, 4:1 thrust ratio at max. Want flight time of around 7-8 mins. What capacity battery should i use?
  11. T

    Batteries for dumbies

    Coming into the new world of FPV, I’m incredibly overwhelmed with the plethora of batteries available for all kinds of builds. What’s the difference between all of them and how would a noob be able to know which batteries are right for which quad like weight and size? Lipo, Livh, maH, v, c, 3s...
  12. Brushless FPV Junkie

    Battery voltage and current osd.

    My 220 flies great despite some crashes early on, some breaking things then fixing them, breaking more things, replacing those, soldering, upgrading and a few video transmitters being damaged in crashes and then replaced. I now have very few original parts on it and subsequently have learned to...
  13. WizardX220Guy

    !!!Battery Problems!!! help!

    Hey everyone, Ive run into some issues with my Eachine Wizard. So the 3s battery that i got has been working fine until just yesterday. For some reason I put it to charge it, it will charge up cells 1 & 2 but cell 3 stays red on the charger. So far it hasnt turned green stating that its fully...
  14. K

    Which one is better?

    Hello, people! Ordering bit by bit my racing equipment (as well as a prebuilt drone) and batteries got me confused a bit. This is my first proper experience with RC world and I really don't want to fail at it and go through as smooth as possible (no pun intended). As a beginner, I tend to...
  15. B

    480 class drone build battery

    Hi i'm building a drone with these are the parts tht i want to use: MOTOR AND ESC COMBO: https://hobbyking.com/it_it/multistar-afro-combo-pack-2216-800kv-and-matched-20a-afro-esc-set-of-4-cw-ccw.html QUAD FRAME WITH PDB...