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FullyMax FB900HP-3S 11.1v 900mah


BillW50

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The FullyMax FB900HP-3S is an 11.1V Lipo pack for use with the DNA 200. It comes with a JST-XH balance plug and 18 AWG power cables (no connector). Evolv used this battery in the DNA 200 beta mods and it performed well.

Voltage: 11.1VDC
Capacity: 900mAh (10Wh)
FullyMax model: FB900HP-3S
Dimensions (mm): 19.8 x 26 x 70
Max Cont. Discharge: 30C (27.0A)
Max Burst (3 Sec.): 60C (54.0A)

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Wow no dedicated thread for the FullyMax FB900HP-3S? Ok I just created one.

I've been experimenting with one when I recently purchased a red Hotcig DX200. They say it contains a FullyMax anyway. And once you get down to about 3.74v per cell, it starts to drop very fast. I had one about at that voltage and I put it on one of my 15 year old RC charger that charges slowly at first and takes like 10 minutes to build up to the current you set it to.

Anyway I selected a 11.1v @ 2.5A lipo and pushed start. I was constantly checking for any heat during the charging and it stayed at room temperature the whole time. It finished at 12.6v and it put in 588mah in 23 minutes. Wow, impressive.

Vaped it down to 3.05v per cell and I'll recharge it in the morning with a freshly brewed coffee and a nice vape. So I can keep a close eye on it and see how much it stores and how long it takes. I'll do the same to another one to check for variations. Then I'll check them through a number of cycles to see how well they perform.

Stay tuned.

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Yes that is correct. Since I had the cell cutoff at 3.05v, I had to stop since I couldn't vape anymore. It is just sitting right now.

Cell 1 = 3.36v
Cell 2 = 3.35v
Cell 3 = 3.23v
Pack = 9.94v

That is reading it unloaded at the balance connector on the battery. But as it sits it has been creeping up a bit. I'll check it again in the morning.

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That low cell 3 bothered me so I charged it individually to v3.47v, discharged it some. And it settled to 3.44v. Waited 30 minutes and it stayed right there.

FullyMax Pack 1
Charged at 11.1v @ 2.5A
10 minutes to build up to 2.5A
23 minutes started dropping from 2.5A
30 minutes finished charging, reported capacity is 912mah.

Cell 1 = 4.20v
Cell 2 = 4.20v
Cell 3 = 4.21v
Pack = 12.61v

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FullyMax Pack 1 of 3 (red)
Charged with DNA200 USB 1A
2.5 hours finished charging (Max Recharges 4.10v per cell)

Before charging unloaded
Cell 1 = 3.30v
Cell 2 = 3.28v
Cell 3 = 3.12v
Pack = 9.68v

After charging unloaded
Cell 1 = 4.10v
Cell 2 = 4.10v
Cell 3 = 4.10v
Pack = 12.3v


It is very clear this FullyMax Pack 1 of 2 after repeated discharging and recharging has a lower capacity cell 3 than the other two cells.
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FullyMax Pack 3 of 3 (black)
Charged at 10.8v @ 1A
55 minutes finished charging, reported capacity is 796mah. (charged to 4.10v per cell)

Before charging unloaded
Pack = 9.80v

After charging unloaded
Cell 1 = 4.08v
Cell 2 = 4.08v
Cell 3 = 4.08v
Pack = 12.23v
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