Recent content by waingroo

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...

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...

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...

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...

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...

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...

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...

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...

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...

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

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

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

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...

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.

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".