LiFePO4 "FullRiver" Bulk Purchase-Quantity

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DrkAngel   10 GW

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LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by DrkAngel » Sep 04 2017 12:05pm

.
...
Shipped from USA (made in China)
Updated info - NOS New Old Stock - some dated 10/2013
Review - "Good old stock Batteries dated 10/2013 capacity tested as advertised good value"


All gone - NEW Box of 60 Fullriver LiFePO4 32700 3.2V 5400mAh Rechargeable Batteries 32650
$115 - 1036Wh = $111/kWh

Looks reasonable for:
12s5p = 38.4V 27Ah (36V) - eBike
Balance charger capable as 2 - 6s5p
4s15p = 12V 81Ah (12.8V) - powerwall

NEW Box of 80 Fullriver LiFePO4 26650 3.2V 3300mAh Rechargeable Batteries
$100 - 844Wh = $118.48/kWh
Reasonable for:
8s10p = 25.6V 33Ah (24V)
Balance charge as 2 - 4s10p or 8s10p w/iMax B8 or similar
4s20p = 12V 66Ah (12.8V) - powerwall

Bulk charging LiFePO4 is somewhat ... tricky. Similar to SLA, it requires a higher "saturation" charge with a "charge termination" function.

Remember ... Lithium-iron is nearly twice the size of Lithium-ion for the same capacity.
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Last edited by DrkAngel on Feb 05 2018 7:27pm, edited 2 times in total.
A little learning is a dangerous thing;
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There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

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tanstaafl   10 W

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Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by tanstaafl » Sep 06 2017 8:50pm

I bought some batteries from the same seller and found him to be reliable. My battery packs are big and heavy, but they've tested out at rated capacity and I haven't had any problems so far. The ones I got were already connected in 7p batteries and I just had to put them together in series for a 20s 7p (60v nominal) pack that lasts me a whole week per charge.

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DrkAngel   10 GW

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Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by DrkAngel » Feb 05 2018 10:01am

3300mAh cells still available.
Decided to purchase a case for small project.
I will test and rate cells for posting up here.
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2018

EBike Toolbox - Bargains! $

Endless Sphere Wiki - Lost?

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DrkAngel   10 GW

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Joined: Dec 15 2010 11:14am
Location: Upstate-Western-Southern Tier NY. USA

Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by DrkAngel » Feb 15 2018 10:55am

Delivery was estimated at 4-6weeks, but just got UPS tracking for delivery at 10 days from purchase.
Seller accepted "make offer" of $70 +$20.19 shipping.

NEW Box of 80 Fullriver LiFePO4 26650 3.2V 3300mAh Rechargeable Batteries
$90 - 844Wh = $106.64/kWh

Yeah ... delivery today!
Just getting over the "bad" flu and need some indoor prepping time to "build up" before facing the cold-wet outdoors.
Build up my health and enthusiasm for the cold and wet.

Bad Flu
Day 1 - Slight lousy-achy feeling turns into cold shivering >> shakes
Day 2 - Alternating Sweats and Shivers - Stayed in bed and was unable to fully sleep or wake
(Put up "Closed Got Flu" sign on store door)
Day 3 - Alternating Sweats and Shivers - Stayed in bed and was unable to fully sleep or wake
Day 4 - finally able to sleep a few hours at a time - coughed for 1st time and throat felt torn and raw
Day 5 - finally able to get out of bed and feel brain function returning but throat feels torn and raw with any cough
Day 6 - Feeling more human
(Store sign warns "Got Flue Enter at own risk")
Day 7 - coughing only tears at throat slightly now, but produces slimy sputum
Day 8 - Yeah ... today, Flu seems gone with very occasional cough - sign still posted!

Survival kit
Saline nasal spray with small dose of vinegar added - cleans sinuses and tear ducts nicely
Chicken bouillon broth with garlic and cayenne pepper added
TheraFlu DayTime and NightTime
Variety of Chicken and various other soups
Large quantities of "Low Calorie Sparkling Lemonade"
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2018

EBike Toolbox - Bargains! $

Endless Sphere Wiki - Lost?

User avatar
DrkAngel   10 GW

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Location: Upstate-Western-Southern Tier NY. USA

Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by DrkAngel » Feb 16 2018 2:02am

80 - 26650 LiFe cells arrived.
Sorted cells by received voltage
2 - cells near 3.40V - charge-discharge testing iMax B8s 1 Blue + 1 Black
8 cells near 3.33V
50 cells between 3.330V >> 3.327V - 1 testing on iMax B6
10 cells between 3.318V >> 3.324V
10 cells near 3.30V 3.310V
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2018

EBike Toolbox - Bargains! $

Endless Sphere Wiki - Lost?

Hapwood2002   1 µW

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Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by Hapwood2002 » Mar 17 2018 6:09pm

I purchased 10 Fullriver, lifepo4, 26650, 3300 mah to test. I've been somewhat disappointed. 3 of the 10 have tested below 2000 mah of capacity. I'm discharging at .5 A
Also, these cells are noticeable warm while discharging. All three show internal resistance of 80 or higher.

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DrkAngel   10 GW

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Re: LiFePO4 "FullRiver" Bulk Purchase-Quantity

Post by DrkAngel » Mar 18 2018 2:01am

Similarly disappointed with the Fullriver LiFe.
Preliminary iMax cycle test (3.6V >> 2.0V) proved out near 2000mAh. (3.65V is recommended charge)
Experimented with LiFe charge 3.6V >> LiIo discharge 3.0V with poor results.
Accidentally ran a cycle at LiIo 3.0V >> 4.10 and got 3000+ mAh!

.
.........
LiFePO4 Capacity "Map" Test


Image

Will connect as 4s20p for cycle testing via inverter, through VAWAh meter.
Cycling cells multiple times might enhance-stabilize capacity-performance?
Will allow differing charge-discharge rates and voltages.
Will bulk charge with MeanWell and monitor banks with 6s volt meter.
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2018

EBike Toolbox - Bargains! $

Endless Sphere Wiki - Lost?

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