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[|DRC| Wartex]

http://toolhacker.com/2010/01/bosch-dewalt-makita-milwaukee-ryobi-ridgid-hilti-battery-specs/

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[|DRC| Wartex]

found accurate DeWalt 28/36 V battery specs (cells are made by A123 Systems)

Form Factor: cylindrical 26650 (26 mm diameter, and 65 mm in length)
Voltage: 3.3 V nominal, 3.6 OCV
Capacity: 2.2Ah capacity minimum
Mass: 70 g
Internal DC impedance: ~11 mOhm
Power Density (5s pulse) >3500 W/kg
Energy Density ~120 wh/kg
Cycle life (100%DOD at 1C charge, 5C discharge rate) >1000
Recommended Temp range -20C to 60C


I tested an XRP battery and DC9180 LiFePO4 battery with a cordless grinder DC415 and they both yielded the same amount of cuts (10 1/2 across 1/2" rebar with 2mm disc)

Battery weight:

18V = 1.7lbs
28V = 2.0lbs
36V = 2.4lbs

[|DRC| Wartex]

Milwaukee V28 (eMoli) battery spec:

Dimension: 26mm diameter x 70mm length
Weight: Approximately 100g
Mfg Claimed Capacity: 2670mah
Nominal Voltage: 3.7 V
Charge Voltage: 4.2 V
Mfg's Max Continuous Discharge Rate: 20A
Max Tested Continuous Discharge Rate* 45A (15C)

Made in Canada by Moli Energy.

Spec sheet in pdf

[|DRC| Wartex]

Saphion@ Rechargeable Lithium Ion Battery
The Valence Technology, Inc. Saphion@ rechargeable Lithium Ion battery, IFR18650e, is a high
performance energy cell designed to maximize safety and provide consistent robust performance in
highly cyclic, float and medium power applications. The IFR18650e is perfect for large format needs.

Charge Voltage 3.65V standard (3.4V float, 4.2V max)
Nominal Operating Voltage 3.2V @ C/5
Nominal Rated Capacity 1400 mAh @ C/5
Discharge Method Standard 280 mA (C/5)
Max Continuous Discharge 2.8 A (2C)
Max Pulse Discharge (30sec) 5.6 A (4C)
Discharge Cut-off Voltage 2.5V
Charging Time Standard Charge = 2.5 hours
Charging Method
Constant C/2 current to 3.65 V limit, then
constant voltage (3.65V) with floating curren

[|DRC| Wartex]

Batteries labeled as "Canadian Tire Yardworks LiMn 20v 6ah batteries":

Availability: Only in Canada at Canadian Tire stores or delivered to anywhere in Canada.
Current price: $109.99 Canadian plus taxes as of Sept. 2008.
Warranty: 1 year over the counter exchange.
Includes: BMS and casing but can be reduced to 5 banded cells.
Charger: $29.99, rated 2 amps but measured 1.8amps; takes 3-3.5 hours for full charge.
Charge-ability: Charge-able in 1 hour at maximum current of 12 amps.
Chemistry: Lithium Manganese / Spinel.
Form Factor of 5 banded cells: prismatic, 65 mm x 65 mm x 140 mm
Voltage: Per cell: 3.7 V nominal, 4.2v max, 3.0v minimum normally but LiMn good to 2.5v.
Capacity: rated 6Ah; observed 5-6Ah
Mass: about 1600 grams with case and BMS, about 1230 grams for 5 banded cells; 245 grams per cell,
Internal DC impedance: measured about 125 milliohms at 16 amps for 5 cells; 25 mO per cell.
Max Current: BMS limits to 31 amps.
Power Density (5s pulse) about 440 W/kg ? (at 30a, 18v for 5 cells)
Energy Density: ~90 wh/kg

Thanks to mikereidis of Endless Sphere forums.

[|DRC| Wartex]

Confirmed, Ridgid uses E-Moli 18650 cells, 1450 Mah

Spec sheet pdf

I bet the same batteries are used in Milwaukee 18v and 12v stuff.

Thanks LuxLuthor of Candlepower Forums for pictures.

[|DRC| Wartex]

Updates: cells in Bosch 36v stuff is Sony SF-US18650-VT, 10S2P configuration, 1100 mAh per cell.

Makita uses Sony SE US18650-V 1500 mAh which has a lower max discharge current than VT version.

New 18v Bosch LiIon is 2.6 Ah, unconfirmed, that makes it 1300 mAh per cell.

[|DRC| Wartex]

Talked to a Dewalt rep, new Porter Cable li-ion drills use Sony SF-US18650-VT 1.1 Ah cells. Unconfirmed.

Also was told new NiCd XRP batteries, also called "generation 5 XRP" will have a cell balancer circuit board inside.