aussiecuunt
New Member
- Joined
- Dec 1, 2021
- Messages
- 2
Hey everyone,
Longtime reader, first time poster, I just registered today because I figured, I now need help of my own.
The batteries I am about to talk about are 12V Lifepo4 100AH.
I purchased some 2 Lifepo4 batteries, they have clear cases, so you can see inside them, I have only had them for a month but already having issues.
My biggest concern is there is water drops inside the case (water condensation building up on the inside).
This is a bit worrying because it can cause corrosion through the wiring, the BMS circuit and/or the internal terminals.
I have emailed the company and they said
Now this sounds extremely odd to me because
Issue #2 I am having is the batteries are supposed to have a low cut off protection of 9.2v (yeah I know, that seems too low huh?), yet the BMS is cutting the battery off at 12.2V-12.5V.
Issue #3 one of the batteries is not charging, when connected to my Victron 100/50, the battery will go from 12V to 13.5V in seconds. No current will flow into the battery at all, but the voltage will show full, despite not being full at all. Pretty sure my cabin would burn down if my battery when from 12V to 13.5V in 1 second. There is no way in hell my wires could handle 100Amps per second lol I have posted a video of this happening HERE <-- I posted it to YouTube.
The company claims this
Here is the photo they attached
However, the other battery doesn't do this, it chargers normally. In fact no battery does this!
The LCD display shows the voltage of the battery NOT the voltage applied to the battery from the Victron MPPT.
If when charging a battery, the charger showed the battery at full voltage, it wouldn't charge at all..so their reasoning makes no sense at all.
I know they're full of shit because the other batteries LCD display always and only displays the voltage of the battery NEVER the voltage applied.
Lastly, when connected in series, the batteries go out of balance pretty quickly (few minutes). Yes I have charged them fully individually.
one never stays at 13.5V. One of them will be at 13.5V while the other will be at 13.3V.
Oh also when even the smallest load (1Amp) is applied to the battery bank, the voltage will drop quite a bit, for example if they are at 13.3V, it'll drop to 13V.
Thanks heaps!
Longtime reader, first time poster, I just registered today because I figured, I now need help of my own.
The batteries I am about to talk about are 12V Lifepo4 100AH.
I purchased some 2 Lifepo4 batteries, they have clear cases, so you can see inside them, I have only had them for a month but already having issues.
My biggest concern is there is water drops inside the case (water condensation building up on the inside).
This is a bit worrying because it can cause corrosion through the wiring, the BMS circuit and/or the internal terminals.
I have emailed the company and they said
The water drops in the case are normal for LiFePO4 batteries, there will be pressure release valve body on the side of the battery cells where is in the middle of the cells connecting bolts. There will be water vapour being released while you are charging and discharging. You are not the first person asked this, because there is no other clear cased Lithium batteries on the market so people don't know what happened in side the black battery.
Now this sounds extremely odd to me because
- If the cells are needing to vent, that would me they are getting too hot, overcharged or something else.
- The BMS should be preventing the cells from even getting too hot.
- If Lifepo4 cells are known to vent and cause condensation inside the case, wouldn't the case have a vent to allow the condensation to escape?
Issue #2 I am having is the batteries are supposed to have a low cut off protection of 9.2v (yeah I know, that seems too low huh?), yet the BMS is cutting the battery off at 12.2V-12.5V.
Issue #3 one of the batteries is not charging, when connected to my Victron 100/50, the battery will go from 12V to 13.5V in seconds. No current will flow into the battery at all, but the voltage will show full, despite not being full at all. Pretty sure my cabin would burn down if my battery when from 12V to 13.5V in 1 second. There is no way in hell my wires could handle 100Amps per second lol I have posted a video of this happening HERE <-- I posted it to YouTube.
The company claims this
I have watched your video, the LCD monitor displays the voltage you apply to it with your charger OR the battery voltage if you didn't connect the load. The SOC is calculated based on the voltage. Where it will shows 100% at 13.5v and 0% at 10.5v. I have attached the internal wiring of the LCD.
I can see when you connect the battery to the external power supply, the monitor shows 13.5v that's the voltage reading of your power supply. When you release the external power supply the reading dropped to 12v, this is the battery voltage.
Here is the photo they attached
However, the other battery doesn't do this, it chargers normally. In fact no battery does this!
The LCD display shows the voltage of the battery NOT the voltage applied to the battery from the Victron MPPT.
If when charging a battery, the charger showed the battery at full voltage, it wouldn't charge at all..so their reasoning makes no sense at all.
I know they're full of shit because the other batteries LCD display always and only displays the voltage of the battery NEVER the voltage applied.
Lastly, when connected in series, the batteries go out of balance pretty quickly (few minutes). Yes I have charged them fully individually.
one never stays at 13.5V. One of them will be at 13.5V while the other will be at 13.3V.
Oh also when even the smallest load (1Amp) is applied to the battery bank, the voltage will drop quite a bit, for example if they are at 13.3V, it'll drop to 13V.
Thanks heaps!