Bought 16 of the LF280K cells plus their JBD 7S-20S-200A BMS through Jenny from the Houston warehouse.
All cells look pristine, all were within 7 mV of each other, near 3.3v. Everything is now up and working.
The JBD BMS has no trouble keeping them in balance after I first wired them in parallel and did a top balance.
Here's some documentation on the above items:
The Android ap here is working great with the JBD BMS via bluetooth: https://jiabaidabms.com/pages/download-files
You can get cells more cheaply if shipped to you direct from China, though I did not want to wait months for them to arrive
though shipping times should be getting more reasonable if the pandemic continues to ease.
Shipping from China, Jenny may be able to personally inspect the cells for you before they go out.
My understanding is that product shipped from China that is found defective can be returned to the Houston warehouse.
Almost all reports I see in this forum indicate that product from this supplier is good.
Keep in mind that those few who do receive damaged goods are more inclined to speak up here.
Every vendor will occasionally ship something that should not have gone out, the test is in how they respond.
I made a video recording as the boxes were opened so if there was damage it would be clear they arrived that way.
It would be very easy for an end user to bloat the cells during an initial top balance
if the cells were left too long above 3.45V.
(Edited some of the URL's 10 minutes after posting)
Discount China Wholesale USA STOCK FAST UPS DELIVERY LF280KEVE 280Ah New Version 6000 cycle 3.2V Lifepo4 Battery Cell [LF280K]- $149.00 - PowerWholeSale
PowerWholeSale USA STOCK FAST UPS DELIVERY LF280KEVE 280Ah New Version 6000 cycle 3.2V Lifepo4 Battery Cell [LF280K]- USA STOCK FAST UPS DELIVERY LF280KEVE 280Ah New Version 6000 cycle 3.2V Lifepo4 Battery Cell HOW TO ORDER?Step1. Please check the real price (different address with totally...
www.powerwholesale.net
Discount China Wholesale USA STOCK FAST UPS DELIVERY JBD Smart BMS 7S-20S 200A with Bluetooth FREE SHIPPING [JBD 20S]- $145.00 - PowerWholeSale
PowerWholeSale USA STOCK FAST UPS DELIVERY JBD Smart BMS 7S-20S 200A with Bluetooth FREE SHIPPING [JBD 20S]- USA STOCK FAST UPS DELIVERY JBD Smart BMS 7S-20S 200A with Bluetooth FREE SHIPPING HOW TO ORDER?Step1. Please check the real price (different address with totally different shipping cost...
www.powerwholesale.net
All cells look pristine, all were within 7 mV of each other, near 3.3v. Everything is now up and working.
The JBD BMS has no trouble keeping them in balance after I first wired them in parallel and did a top balance.
Here's some documentation on the above items:
Battery Cell Data Sheets
diysolarforum.com
Product Files Support
Product Specifications AP Series Specification Sheet JBD-AP21S001-6-21S of 60-200A Smart bms JBD-AP20S006-7-20S of 200A Smart bms JBD-AP21S002-7-21S of 200A Smart bms DP Series Specification Sheet JBD-DP24D002-L24S-200A-200A-B-U-R-K_V1.2 JBD-DP04S007_V1.5-LiFePO4-Specification_Sheet...
jiabaidabms.com
BMS Instruction Manual (download) – Overkill Solar
overkillsolar.com
You can get cells more cheaply if shipped to you direct from China, though I did not want to wait months for them to arrive
though shipping times should be getting more reasonable if the pandemic continues to ease.
Shipping from China, Jenny may be able to personally inspect the cells for you before they go out.
My understanding is that product shipped from China that is found defective can be returned to the Houston warehouse.
Almost all reports I see in this forum indicate that product from this supplier is good.
Keep in mind that those few who do receive damaged goods are more inclined to speak up here.
Every vendor will occasionally ship something that should not have gone out, the test is in how they respond.
I made a video recording as the boxes were opened so if there was damage it would be clear they arrived that way.
It would be very easy for an end user to bloat the cells during an initial top balance
if the cells were left too long above 3.45V.
(Edited some of the URL's 10 minutes after posting)
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