The Rolls Surrette 4KS25PS (4-KS-25PS / 4KS-25PS) is rated at 1350 amp Hrs. @ 20 Hr. rate. This battery is the 315 pound gorilla of the 4 volt Renewable Energy Arena. The 4KS25PS (4-KS-25PS / 4KS-25PS) is a ultimate expansion of the Roll's New Generation Dual-Container 4 Volt line. Using the famous Rolls Surrette KS plate, this battery offers the highest capacity of the Rolls Surrette Renewable Energy Line. The KS plate batteries have a reputation of 15-20 years expected life.
Warranty is 10 years (first 36 months replacement, next 84 months pro rated).
For a Single String 1350AH Bank, you will need 3 of the 4KS25PS (4-KS-25PS / 4KS-25PS) for a 12 Volt System, 6 of the 4KS25PS (4-KS-25PS / 4KS-25PS) for a 24 Volt System and 12 of the 4KS25PS for a 48 Volt System. Each additional string will multiply the AH.
Real world expectations: The 4KS25PS (4-KS-25PS / 4KS-25PS)4KS-25PS will supported a 25 amp load for 71 hours!
|Capacity @ 25 Amps||4290 Minutes|
|Amp Hours / 100 hr||1904 AH / 19.04 A|
|Amp Hours / 72 hr||1796 AH / 24.94 A|
|Amp Hours / 50 hr||1661 AH / 33.21 A|
|Amp Hours / 20 hr||1350 AH / 67.5 A|
|Amp Hours / 5 hr||905 AH / 180.9 A|
|Length||15 3/4" (400 mm)|
|Width||10 5/8" (270 mm)|
|Height||24 3/4" (629 mm)|
|Weight||315 lbs (143 kg)|
This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. Click here to see an estimate of our delivery times with standard FedEx Ground shipping.
Returns & Replacements
Regularly stocked, non-special-ordered, and non-custom-built items can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 30%. Freight shipping is non-refundable.
For more, please read our full return policy.