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Power-Sonic AGM High Rate General Purpose PSH-12180 FR 21Ah 12V Rechargeable Sealed Lead Acid (SLA) Battery - NB Terminal

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1$58.50 ea.
2 - 3$56.00 ea.
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Power-Sonic PSH-12180FR

Backup Your Backups

The PSH-12180FR Rechargeable Sealed Lead Acid Battery stands out from other alternative power sources in the marketplace. Delivering 12V of continuous power alongside a rating of 21 AH signifies the great capabilities this Sealed Lead Acid Battery has to offer. This SLA battery is ideal for powering high-end motorcycles, ATVs, and even alternative forms of energy such as generators.

Up To 10 Years of Shelf Life Guaranteed

Improved technology by Power-Sonic guarantees the shelf life of your SLA battery, and its ability to perform.

Inside and out, the PSH-12180FR protects itself against spills and drops. Outside, the PSH-12180FR Sealed Lead Acid Battery is housed inside an ABS Plastic case and cover. The plastic is specifically engineered to protect against hard drops and to work under tough circumstances. Inside, an Absorbent Glass Mat (AGM) improves overall performance and helps prevent major spills and leaks from the battery.

A Brand You Can Count On

Power-Sonic employs the best and brightest in energy and battery power to construct some of the world's most powerful batteries.

Since 1970, Power-Sonic strives to deliver the best in power and conservation of energy. The PSH-12180FR boasts 12 Volts and is rated for 21.0AH, more than enough to power many generators and small vehicles. Rechargeable components of the Power-Sonic Sealed Lead Acid Battery guarantee consistent power any time, all the time.

  • Absorbent Glass Mat (AGM) technology creates an improved, longer-lasting battery
  • Built to prevent spills and regulate valves for protected operation in any situation
  • Energy Density peaks with great power/volume ratios
  • ABS Plastic Case strengthens impact resistance (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


  • SLA, Rechargeable Sealed Lead Acid Battery
  • Voltage: 12 Volts
  • Capacity: 21.0 AH
  • Terminal Type: NB
  • Approximate Weight: 13.20lbs
  • Dimensions (LxWxH): 7.14"x 3.03"x 6.59"
  • Energy Density (20-hr. rate) 1.77 W-h/in3 (107.86 W-h/l)
  • Specific Energy (20-hr. rate) 19.09 W-h/lb (42.09 W-h/kg)
  • Internal Resistance (approx.) 12 milliohms
  • Max Discharge Current (7 Min.) 63.0 amperes
  • Max Short-Duration Discharge Current (10 Sec.) 210.0 amperes
  • Shelf Life (% of nominal capacity at 68°F (20°C):
    • 1 Month 97%
    • 3 Months 91%
    • 6 Months 83%
  • 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
Battery Size:SLA
Battery Capacity (mAh):21000
Battery Chemistry:Sealed Lead Acid
Battery Voltage:12
Battery Terminal Type:NB
Battery Shelf Life:6 Months
Product Certifications:CE, UL
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:211.2oz
Product Dimensions:7.14" (L) x 3.03" (W) x 6.59" (H)
Country of Origin:China
By W G.
Indianola, iowa
April 13, 2020
Shipping was good, customer service advisor answered my questions very well, Cost of the item was very good. So why only 4 stars. Very few on-line purchases are a full 5star rating, however, this one was close, but there is no such place for a 4.5, which it should get.
By Dennis R.
Quality AGM Battery
May 15, 2016
I have been purchasing PowerSonic batteries for several years now,and they are among the best quality batteries made,and at reasonable prices.The battery I purchased charged fairly quickly and came supplied with several nut,bolt,and washer assembly for attaching your connectors to the terminals.
  • High Rate Discharge Series allows this battery to be discharged at a lower voltage level without creating damage to battery.
  • None
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Power-Sonic AGM High Rate General Purpose PSH-12180 FR 21Ah 12V Rechargeable Sealed Lead Acid (SLA) Battery - NB Terminal

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