AV2b Battery Pack
Battery Pack Requirements
- SHOULD be a 4-series cell Li battery
- Battery SHOULD cost <500$
- Overall Battery SHOULD have energy-mass density (100,,) W.hr/kg
- Overall Battery energy-volume density SHOULD be (200,,) W.hr/l
- Battery capacity SHOULD be (4,8,) AHr (TODO: TBD on new power budget)
- SHOULD have dimensions less than (,3.0,3.5) inches in the cross sectional plane of the airframe, length (,,10)inches
- MUST have a fuse in the pack before the lead
- Total battery "unplugged" leakage MUST be < C/(1,5,) year rate (e.g. ~ 100 uA for 4 AHr)
Predicted power usage:
| Module | Current (A) |
|---|---|
| Flight computer | 0.516 |
| GPS: | 0.242 |
| ATV: | 1.546 |
| transitors: | 0.003 |
| APS-can node | 0.047 |
| IMU: | 0.095 |
| TOTAL | 2.4494 |
Battery Pack Info
We're using a 4S2P pack of "AA Portable Power Corp" PL-5467100-2C (2.75,3.7,4.2) V at 4.250 AHr Li-polymer cell.
This gives us a (11.0,14.8,16.8)V at 8.25 AHr battery pack.
Battery Research
Battery Packs
found prior to adjustment to requirements on 1/30/09
polyquest
model: PQ-1600LP-4S
capacity: 1.6 Ah
weight: 146 grams
dimensions: 3.03 | 1.46 | 1.3002
price: $65.99
distributer: <http://www.batterystation.com/lithiumpolymer%20polyquest.htm>
ThunderPower
model: LP-TP2000-4SPL
capacity: 2 Ah
weight: 159.9 grams
dimensions: 2.561 | 1.97 | .99
price: $98.99
distributer: <http://www.robotcombat.com/products/LP-TP2000-4SPL.html>
found after adjustments in dimensions on 1/30/09
manufacturer:Polyquest
model:PQ-4250LP-4S
capacity: 4.25 Ah
voltage: 14.8 V
dimensions: 5.83 | 1.85 | 1.22
weight: 402 grams
energy density: 156.47 W.hr/kg
price $136.25
distributer: <http://www.batterystation.com/lithiumpolymer%20polyquest.htm>
Poly Rc
model: PQ-4350XP-4S
capacity: 4.35 Ah
voltage: 14.8 V
dimensions: 6.5 | 1.8 | 1.3
weight: 436 grams
energy density: 147.66 W.hr/kg
price: $196.99
distributer: <http://www.batterystation.com/lithiumpolymer%20polyRC.htm>
Thunder Power
model: TP4600-4SXL
capacity: 4.6 Ah
voltage: 14.8V
dimensions: 7.6 | 1.81 | .95
weight: 457 grams
energy density: 148.97 W.hr/kg
price: $161.24
distributer: <http://www.batterystation.com/lithiumpolymer%20thunderpower.htm>
Polyquest
model: PQ-5350LP-4S
capacity: 5.35 Ah
voltage: 14.8V
dimensions: 5.56 | 1.82 | 1.58
weight: 469 grams
energy density: 168.83 W.hr/kg
price: $180.50
distributer: <http://www.batterystation.com/lithiumpolymer%20polyquest.htm>
Cells
| Manufacturer | Model | Capacity (Ahr) | @ rate | Voltage | X | Y | Z | Weight (g) | En. Dens. | Cost | Distributor |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tenergy | 30512 | 4 | 15C | 3.7 | 5.30 | 1.77 | 0.26 | 85 | $51.99 | link | |
| Tenergy | 30502 | 1.25 | 10C | 3.7 | 2.56 | 1.38 | 0.22 | 28 | $19.99 | link | |
| Panasonic | CGA103450A | 1.95 | 1C | 3.7 | 1.97 | 1.34 | 0.42 | 39 | $13.00 | link | |
| sanyo | UF103450P | 1.88 | 1C | 3.7 | 1.95 | 1.34 | 0.37 | 38.5 | 180 Wh/kg | $18.34 | link |
| BatterySpace.com | PL-896474-2C | 5 | 2C | 3.7 | 2.92 | 2.52 | 0.35 | 95 | 185 Wh/kg | $24.95 | link |
| Batteryspace.com | PL-875055-2C | 2.5 | 2C | 3.7 | 2.17 | 1.97 | 0.34 | 51 | 181 Wh/kg | $13.95 | link |
| Batteryspace.com | PL-9059156-1C | 10 | 1C | 3.7 | 6.15 | 2.32 | 0.35 | 196 | 204 Wh/kg | $32.95 | link |
| Batteryspace.com | L-5467100-2C | 4.25 | 2C | 3.7 | 3.94 | 2.64 | 0.22 | 85 | 185 Wh/kg | $19.95 | link |
Fuses
K/GBB-17-1-2-R
BUSSMAN | <http://www.cooperbussmann.com/library/products/GBB_Specs.PDF>
456 series
Littelfuse | <http://www.littelfuse.com/data/en/Data_Sheets/Littelfuse_Fuse_456.pdf>
PCF30-S
Ferraz Shawmut | <http://www.ferraz-shawmut.com/advisor/pdf/PCF.pdf>