Surrette Rolls Battery

Surrette Rolls 4 KS 21P 1148Ah 4V Deep Cycle Battery


SKU: 4 KS 21P Category:

Order requirement

Minimum of 4 Surrette batteries for online purchasing

Volume discount pricing

Volume pricing starts at 24 batteries, call to order

The Surrette Rolls 4 KS 21P (4 KS 21PS / 4 KS 21P) is a 4 Volt deep cycle battery rated at 1481 Ah @ 100 hours rate. Surrette series 5000 batteries feature a reinforced dual case with a small footprint. They come with a 5-year warranty, but with proper care, you can expect a life cycle of 15 -20 years.

Rolls Surrette deep cycle batteries are extensively used in large renewable energy systems. The table below offers the Ampere hour capacity ratings based on the specific gravity of 1.280 at 25°C (77°F). For calculations, reduce capacities 5% for specific gravity of 1.265 and 10% for 1.250.

Hour RateCapacity / AMP HourCurrent / AMPs
@ 100 Hour Rate1481 AH14.81 A
@ 72 Hour Rate1401 AH19.45 A
@ 50 Hour Rate1326 AH26.52 A
@ 20 Hour Rate1148 AH57.41 A
@ 15 Hour Rate1068 AH71.19 A
@ 10 Hour Rate1022 AH102.19 A
@ 8 Hour Rate987 AH123.43 A
@ 5 Hour Rate919 AH183.71 A
@ 1 Hour Rate517 AH516.67 A

Surrette Rolls designed the series 5000 batteries for heavy-duty industrial use. They feature a reinforced plate grid, double insulated with a polyethylene and glass mat envelope to protect against positive plate breakdown. The robust construction prevents treeing, cracked or misaligned separators and eliminates shorting at the bottoms or sides of the battery.

The cells are each built into a separate polypropylene container with a thermally bonded cover to prevent acid leakage. The cells are then placed within an outer container of durable polyethylene with a removable lid. The double case construction ensures that the battery is operable and that it won’t spill, even if the outer case is damaged.

The CS and KS series of the Surrette Rolls industrial batteries allow for disassembly, where each cell can be removed independently, making it possible for each cell to be replaced without special tools. Here are some other battery models with similar specifications. 


ModelVoltageLength WidthHeightWeight
4-CS-17PS4 Volt14-3/88-1/418-1/4128
4-KS-21PS4 Volt15-3/49-3/824-3/4267
4-KS-25PS4 Volt15-3/410-5/824-3/4315


Surrette Rolls

Surrette Battery Company was established in 1935 and has been based out of Nova Scotia, Canada since 1959. For over 50 years they have been manufacturing Rolls branded lead acid batteries and they have become a trusted name in the deep cycle battery industry. They are the only independent battery manufacturer in Canada and one of the leaders in North America. Surrette is known for their high-quality line of lead acid batteries and they have earned a reputation for one of the most reliable batteries on the market. With a high-cycle life, Rolls Surrette has one of the longest warranties in the industry. Surrette Rolls batteries are dependable with long lasting storage capacity;  they are used in renewable energy, railroad, marine and motive power applications around the world.
Surrette Rolls Battery

Surrette Rolls 4 KS 21P Datasheet


Technical specifications for Surrette Rolls 4 KS 21P deep cycle battery

Surrette Rolls Warranty


Warranty information for Surrette series 5000 batteries