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Powe Sonic PS1290 F2
Powe Sonic PS1290 F2 Powe Sonic PS1290 F2 Powe Sonic PS1290 F2

Power-Sonic® PS-1290 F2 Battery

Sale Price: $33.95

SKU: 1927


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Detailed Description

Power Sonic® PS-1290 F2

Power Sonic PS-1290 Battery

General Description

The Power Sonic PS-1290 12 Volt 9.0 Ah battery fits in most sailplanes. These batteries are commonly called "gel-cell" which is incorrect. They are Sealed Led Acid (SLA) batteries. They have been a standard in soaring which is slowly being replaced by the better performing K2 Energy Lithium Iron Phosphate batteries. The primary advantage to the PS-1290 over Lithium Iron Phosphate is lower cost. SLA batteries top performance will last up to a couple of gliding seasons.


• Absorbent Glass Mat (AGM) technology for superior performance
• Valve regulated, spill proof construction allows safe operation in any position
• Power/volume ratio yielding unrivaled energy density
• Rugged impact resistant ABS case and cover (UL94-HB)
• Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certified
• U.L. recognized under file number MH 20845

Performance Specifications

Nominal Voltage: 12 volts (6 cells)
Nominal Capacity:
20-hr. (450mA to 10.50 volts) 9.00 AH
10-hr. (810mA to 10.50 volts) 8.10 AH
5-hr. (1.44A to 10.20 volts) 7.20 AH
1-hr. (5.4A to 9.00 volts) 5.40 AH
15-min. (14.4A to 9.00 volts) 3.60 AH
Approximate Weight: 6.00 lbs. (2.72 kg)
Energy Density (20-hr. rate): 1.92 W-h/in3 (116.94 W-h/l)
Specific Energy (20-hr. rate): 18.00 W-h/lb (39.68 W-h/kg)
Internal Resistance (approx.): 13 milliohms
Max Discharge Current (7 Min.): 27.0 amperes
Max Short-Duration Discharge Current (10 Sec.): 90.0 amperes
Operating Temperature Range:
Charge: -4°F (-20°C) to 122°F (50°C)
Discharge: -40°F (-40°C) to 140°F (60°C)
Case: ABS Plastic

Physical Dimensions

F2: L: 5.95 (151) W: 2.56 (65) H: 3.70 (94) HT: 3.86 (98)
NB: L: 5.95 (151) W: 2.56 (65) H: 3.70 (94) HT: 4.15 (106)
Tolerances are ± 0.04 in. (± 1mm) and ± 0.08 in. (± 2mm) for height dimensions


Cycle Applications: Limit initial current to 2.7A. Charge until battery voltage (under charge) reaches 14.4 to 14.7 volts at 68°F (20°C). Hold at 14.4 to 14.7 volts until current drops to under 90mA. Battery is fully charged under these conditions, and charger should be disconnected or switched to “float” voltage

“Float” or “Stand-By” Service: Hold battery across constant voltage source of 13.5 to 13.8 volts continuously. When held at this voltage, the battery will seek its own current level and maintain itself in a fully charged condition.

Note: Due to the self-discharge characteristics of this type of battery, it is imperative that they be charged within 6 months of storage, otherwise permanent loss of capacity might occur as a result of sulfation

About Power Sonic®

Power Sonic® has been a leading force in the global battery business for over 46 years. Their Company has thrived due to their commitment to provide high quality cost effective batteries, backed by a level of service that is second to none.

PS-1290 PS-1290

Why Buy From Us?

Wings & Wheels has been serving the sport aviation and soaring community for more than 20 years.  We have the largest and most comprehensive inventory of sailplane and soaring supplies.  Nearly everything you find here is in stock and can ship the same day.  We are here for aviators, businesses, mechanics and government.  Our goal is to fulfill your order promptly and as conveniently as our resources allow.

Wings & Wheels is proud to be the American representative for HpH Ltd, producer of the finest quality 304 sailplanes.

Our staff has over 8,000 hours of flying experience in gliders and airplanes. Wings & Wheels is staffed by Sean, Garret, and Kelly. You will have a friendly voice pick up when you call. Our staff is trained to promptly take your orders and ship your products.

Shipping Information

Same Day Shipping

Orders placed by 3:00 pm PST Monday-Friday for “off-the-shelf“, in-stock items are normally shipped same day by UPS.  Although we stock the vast majority of the items on our online store, we cannot assure that they will all be on hand at all times. We ship every order as quickly as possible, and in the event of a delay, be assured that we are working hard to get your order shipped promptly. Due to order volume during holidays, we cannot guarantee that all orders placed can ship on the day after the holiday closure. 

Orders for special cut products may take a few days to ship depending on order volume. Special order products ship based on the lead times of each manufacturer. 

Shipping Service

UPS LogoUPS Shipping

UPS orders will need to be placed before 4:00 pm EST and 4:00 pm PST Monday-Friday to ship out the same business day.  We apply UPS retail rates to calculate shipping costs.  Packages may not qualify for actual wieight due to size.  If dimensional weight is applied by UPS your shipping & packing rate will be adjusted.  Packages are only insured aganst theft if signature delivery is accepted.  Request signature delivery.


Priority Mail & 1st Class order has to be placed by 11am. We will use the flat rate box service if your parts fit in the box and the service cost is less than USPS Priority Mail. USPS may not always have tracking information available.  If you request lower cost USPS shipping you agree to accept all responsibility for lost, stolen and damaged packages.

Delivery Timing

UPS Ground Delivery

USPS Delivery Timing

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