Protection Circuit Module (PCB) for 7.4V Li-Ion Battery Pack ( 3.0A Limit) --- PCM-Li02S3-129

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Your Price: $2.95

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Product ID # 2771

Part Number: PCB-LI7.4V3A

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Quantity	Amount
5 to 20	$2.86
21 to 50	$2.80
51 to 100	$2.74
101 or more	$2.66

-Protection Circuit Module Specifications for 7.4V Li-ion Pack (3.0A limited)

All Li-Ion Battery packs must connect to a protection circuit module to protect Li-Ion Battery from over charge, over discharge and prevent accidental battery explosion due to its extra high energy density. This protection circuit is specially designed for 7.4V Li-Ion and polymer Li-Ion Battery.
Please connect battery pack with the circuit as the following drawing with wire provided.
Please be advised that this circuit will provide the following protections:

Keep 7.4V Li-Ion Battery pack from overcharge beyond 8.70V
Keep 7.4V Li-Ion Battery pack from over-discharge below 4.60V
Keep 7.4V Li-Ion Battery pack 's discharging current < 3.0A

Feature:

Manufacture part# PCM-Li02S3-129
Applicable for 2 Cells Li-ion / Li-polymer Battery Pack with 3.0A Max discharging current
Dimension (LxWxT) : 40.5mm(1.59") x 6.85mm(0.27") x 2.5mm(0.1")
Weight: 0.1oz (3.0g)
Excluded Fuel Gauge socket for connection to our Fuel Gauge display board to display battery energy level.
- In order display battery energy level from the PCB, you need to order a fuel gauge display here
  - Connect Red wire to P+ spot of PCB
  - Connect Black wire to P- spot of PCB
Please click here to download the specification with wiring diagram.
Need other customized voltage of PCB/PCM with different size? Please click below to order

Tip:

If you want to use this pcm for a battery that is rated less than 10A drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch.

Warning:

Please make sure the AWG gauge of the wire will be compatible with 1maximum current load. Please click here to view the AWG gauge & AWG electronic current load limit chart.
You must be professional in Li-Ion battery pack to buy the PCM for DIY. Misusing PCM may cause battery damage or explode. We are not responsible for any damage caused by user.

Batteryspace is not responsible for any damage cause by misunderstanding and misuse! Please read instruction carefully before assembling.

Product Reviews

(2 Ratings, 2 Reviews)

Average Rating:

EkriirkE

Erik Johnson (Dublin, CA) 10/27/2010 3:50 PM

This board appears to work, however as another reviewer commented the board will not activate even on a fully charged battery. My workaround for this was to solder a micro button between positive input and positive output, so when depressed there is a momentary bypass of the board which somehow kick starts it into action. I think I almost like this.

Works, but has a few quirks

D (San Jose, CA) 1/24/2010 1:04 PM

Appears to work as advertised, however the solder pads for the cell tabs are alarmingly close together. A steady hand is recommended when assembling a pack. Also, if you attach one of these to a battery pack and read zero volts across the output, trying connecting the charger to it (the assembled pack) for a moment, and then checking the output voltage again. It seems that occasionally the board won't activate until its put on a charger, even with fully charged cells attached.