Router Battery Backup

The charging regulator probably didn't make it. When turned on, you should see a constant charging voltage normally 14 volts it is normally 1 Volt or a little higher than the battery voltage. From the looks of things the capacitor looks fine to me. Did you test the mosfets. I am sure a set will be used to power the device and the device it is plugged into, and the other will power the charger. Just be careful they bite.
 
Romy_ said:
The charging regulator probably didn't make it. When turned on, you should see a constant charging voltage normally 14 volts it is normally 1 Volt or a little higher than the battery voltage. From the looks of things the capacitor looks fine to me. Did you test the mosfets. I am sure a set will be used to power the device and the device it is plugged into, and the other will power the charger. Just be careful they bite.
Click to expand...

Who are you talking to?
 
EstelleF said:
Does anyone perhaps have an internal photo of the Huawei B315 Backup Battery Pack hw-li2.6ah-c. My unit flashes red and doesn't charge at all. When I opened the unit up, I found a black broken smd component that is situated right net the B+ connector. Its unmarked and I don't know the value of the broken off component. Any assistance would be greatly appreciated. I have attached an image with the component in question circled...Thank you

View attachment 1491441
Click to expand...
1679818358269.jpeg
This is mine, i have replaced the batteries
 
morbill said:
Try to source batteries from a laptop battery, they are usally samsung or LG or from a Chinese shop, just test them, sometimes the stated capacity does not reflect the actual capacity
Click to expand...
What does that have to do with the 4S1P pack voltage of 3.2V LFP cells?
LFP cell voltage is 2.5V (0% SoC) to 3.65V (100% SoC) so 4S would be 10V to 14.6V.
 
AlphaJohn said:
Bar the 2 Male-to-male 2.5mm this is what I got:

View attachment 1488057

Do suspect its normal as it came from a sealed box.
Click to expand...

I use these cables, standard type fit router and tv box
wingnut771 said:
What does that have to do with the 4S1P pack voltage of 3.2V LFP cells?
LFP cell voltage is 2.5V (0% SoC) to 3.65V (100% SoC) so 4S would be 10V to 14.6V.
Click to expand...
an alernative to these prices

RS PRO 18650 3.2V 1600MAH LIFEPO4 CELL​

Reference 9BT18650LIFERS1

Condition: New
Enjoy free movement with your products out in the world by using this handy RS PRO 18650 Li-Ion Rechargeable Battery, featuring 3.2V 1600mAh power that easily provides portable power to your creations.
10 Items

R 189.95
tax incl.
 

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morbill said:
I use these cables, standard type fit router and tv box

an alernative to these prices

RS PRO 18650 3.2V 1600MAH LIFEPO4 CELL​

Reference 9BT18650LIFERS1

Condition: New
Enjoy free movement with your products out in the world by using this handy RS PRO 18650 Li-Ion Rechargeable Battery, featuring 3.2V 1600mAh power that easily provides portable power to your creations.
10 Items

R 189.95
tax incl.
Click to expand...
Please post a link to your option as I only know of 3.7V cells.
 
Fatter cell but 4 of these instead of 8 * 18650

If replacing a 4s2p
If wanting to replace 4s only the size is a deal breaker


They are 32mm x65mm vs the 18mm x 65mm

www.electromannsa.com

32650 3.2V 5000mAh LiFePO4 Battery

32650 3.2V 5000mAh LiFePO4 Battery (10004686) Package Contents: 1x 32650 5000mah LiFePo4 Cell Product type 32650 3.2V 5000MAH LiFePO4 Battery Cell Nominal capacity 5000mAh Nominal voltage 3.2V Rechargeable or not Yes Max charge voltage 3.7V Discharge ending voltage 2.5 ± V Max charge current...
www.electromannsa.com www.electromannsa.com
 
If you have a touch more space this cell removes the need for spot welding hardware

If you can find them locally
I got 32700 from LBSA before they stopped selling cells that was 2nd life 5ah

you also get a 32650 but have not seen locally yet
 

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Last edited:
pricey though vs the electromann fatter cells
all i get if looking for smaller lifep04 cells

18mm x 65mm
www.diyelectronics.co.za

RS PRO 18650 Li-Ion Rechargeable Battery

Enjoy free movement with your products out in the world by using this handy RS PRO 18650 Li-Ion Rechargeable Battery, featuring 3.2V 1600mAh power.
www.diyelectronics.co.za www.diyelectronics.co.za

size not in listing fatter cell so with no reference can be a 26/32 thick model
www.bobshop.co.za

6.2AH 3.2V Lifepo4 cell | bobshop.co.za

Buy 6.2AH 3.2V Lifepo4 cell for R120.00
www.bobshop.co.za www.bobshop.co.za

26mm x 65mm

26650 LiFePO4 Lithium Rechargeable Battery 3.2V 4000mAh - 2 Pack - GeeWiz

26650 LiFePO4 Lithium Rechargeable Battery 3.2V 4000mAh - 2 Pack for sale online at the Best Prices! Door to Door and Overnight Delivery
www.geewiz.co.za www.geewiz.co.za

18mm x 65mm

ENIX Energies, 18650 LiFePO4, 3.2V, 18650, Lithium Phosphate Rechargeable Battery, 1.8Ah | RS

za.rs-online.com za.rs-online.com
 
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