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  1. W

    Charging LifePO4 help !

    Thanks fo all good advices you gave me. I realy think for a bench power supply. I also have NiMH batteries of 36 and 24. For sure is the best way! You see, is quite unexpected for an austrian brand to cheat people in such way, selling cheapest pack's for biggest price on market. From now, I...
  2. W

    Charging LifePO4 help !

    Anoter answer from guys who sell pack's for this kind of batt... I asked them if is safe, by meaning no danger dfor a lifepo4 without BMS, as I wanted to bring an answer. "Our LiFePo4 batteries are produced since 2009 and have an average lifespan of 6 years. Due to the design, it is...
  3. W

    Charging LifePO4 help !

    I bring the answer from Schachner... Translated with Google : The right charger has the article number 23100. Schachner charger type 10 for the price of 115, - incl. + Shipping The rated voltage is 36V and the end-of-charge voltage is 43.8V. So, definitely I need a LFP 43.8 charger! The...
  4. W

    Charging LifePO4 help !

    I believe you, but why they ask 500$ for a poor battery in Germany. I'm also confuse with the proper charger as the original is 36 and non-original is 44. On the Li-ion charger, hardly go up to 40V and charger get too warm. One more think :there are two graysh wires... where they go? can be a...
  5. W

    Charging LifePO4 help !

    For this battery I've found a chinese charger at 43.8. But the original one seems to have 36V. I seen two photos on internet: One is from a seller and not good quality, and the other photo, with an original labeled charger at 36V. So here is the point! is better a 44V or a 36 one? Watch the...
  6. W

    Charging LifePO4 help !

    I charge it up to 39.4V (from 33). The charger get a bit to hot and I was careful not to burn it. So, I decided to disconnect it. I'll wait until I can find a cheap LFP 43.8 charger (best if I can see the original one like Volts and amps). Now I know the pins for charging, also know it have...
  7. W

    Charging LifePO4 help !

    For me is better. I don't realy like too much electronics and I use Heinzmanns brushed motors wishing to find a way not to use a controller. I have two NiMh heinzmann batteries too, but are heavy and don't fully charge. Schachner also made NiMh batteries for the same rack, but inside have bigger...
  8. W

    Charging LifePO4 help !

    I thought the same like you, but I bought a sealed battery with a sticker and printed as LFP. What will be will be. I already put at charge. From charger pin 1 to batt pin 1 and from charger pin 3 to batt pin 4. The green light turned red and battery is charging. I can loose 20 $ if something...
  9. W

    Charging LifePO4 help !

    Measuring the Li-Ion battery, it shows the corect voltage of 41.2V at the pin no.1 "+" and the pin no.3 "-". Instead, measuring at the pin no.1 "+" and pin no.3 "unknown gray wire" on the LifePo4 one, it gives 26V, but measuring between no.1 and no 4 "-" gives exactly 33V as measured on the exit...
  10. W

    Charging LifePO4 help !

    Here I found on internet how the replace pack looks. Also, there is no BMS.... Strange! https://akkuplus.de/Akkupack-fuer-Schachner-RNA-LFP-396-Volt-8000mAh-LiFePO4-zum-Selbsteinbau?utm_source=pricerunner&utm_medium=cpc&utm_campaign=pricerunner
  11. W

    Charging LifePO4 help !

    I can't really see the BMS on the pack. Nor between the cells or in the box.
  12. W

    Charging LifePO4 help !

    The Li-Ion charger I have, as you can see, the ground is on the no 3 pin.
  13. W

    Charging LifePO4 help !

    In fact, the battery I talk about I found it cheap, without charger (like 20$ on internet) having at home a rack for that type (Schachner 36V LPF 9AH made in Austria); and because I never deal with LFP, I asked all questions above. The only battery and charger I have, are Tranzx Li-Ion 36V & his...
  14. W

    Charging LifePO4 help !

    Ok, I'll try what you told me and I will open the battery tomorrow making some photos of what's inside. Thanks a lot for reply and for help. I will let you know once I done all those things.
  15. W

    Charging LifePO4 help !

    Then, can I use a resistor on the charger "+" wire to drop the voltage to 36-37V ? Coz doing some research on internet, I've seen chargers for 36V LFP at 43.8V. Indeed, on the original Scachner charger seen on internet, write "output 36V".
  16. W

    Charging LifePO4 help !

    Many thanks for the advice! I'll have to open the battery in search for wiring or maybe a burned fuse.
  17. W

    Charging LifePO4 help !

    I'm a bit confused as I can't use a Li-Ion 42V charger bercause I can dammage the LFP battery, instead, searching on google for LFP charger for 36V, it actually have 43.8V. So, a LifePO4 charger provide with1.8V more voltage than Li-Ion one. All I want, is to charge a bit that Schachner...
  18. W

    Charging LifePO4 help !

    Thanks for telling this. Hope I did not damage them and sure I need a LifePO4 charger. Just wanted to charge a bit not to go undervoltage, because it shows 33V.
  19. W

    Charging LifePO4 help !

    Hi; I get a second hand LifePO4 Schachner 36v / 9Ah batt XLR 5 pin mother-plug (measured, indicates 33V and can spin a brush motor-meaning battery is good). I tried to charge it with a TranzX charger 42V 2Ah XLR5 pin designed for my old TranzX Li-Ion BL05 battery, but the green LED, do not turn...
  20. W

    Need a recommendation for gears grease!

    It is actually a Heinzmann hub motor with double reduction. On the exit both gears are steel and on the lower reduction is one steel and one plastic. In fact I'd like that the grease I'll buy to work on my Shimano nexus too. I know Rohloff works under oil. I also have some brushless hub motors...
  21. W

    Need a recommendation for gears grease!

    Thanks for this advice!
  22. W

    Need a recommendation for gears grease!

    Hi all, Need an advice for what kind of grease is more suitable for greasing hub gears. No necessary a brand name... I'm looking rather for the type like what base should be the best (litium? graphite? calcium etc..) Also, the best NGCL recommendation. I'll use in a brushed steel gears hub. I'm...
  23. W

    Replacing magnets for more power

    I know there are two type of Heinzmann like S1 continuous and S2 duty. From what I understood, S1 can run even overheat. The old type (steel cover sheet) are S1... most of them. Mines are S2. Adding an external thermometer is a great idea! thanks for this clue :) Most of hills in my city are...
  24. W

    Replacing magnets for more power

    Thanks for advice... I have to wait until i find a Zokes or Ev Global for sale to get a rear case. How much yours in case you sell it. I think a single speed is enough when have a heinzmann. This mean that even if i get one rear motor from an Ev Global, i must need a longer axle? I never seen a...
  25. W

    Replacing magnets for more power

    Yes, I live in a hilly area and I only need high torque for a few seconds. I'm a hunter of these motors because of their realiability. I even forget about any other motor. Heinzmann is just simple hight quality motor IMO without too much electronics and is just I need. Perhaps yours (400W 24V)...
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