Overview

Rolls Batteries

Batteries are the essential cornerstone of an off-grid or back-up system. The vast majority of batteries used in this sector use lead-acid technology but there is a growing interest in Lithium Ion batteries. Here we only focus on lead-acid as it is still far and away the most cost effective and user friendly method to store energy.

Batteries are an expensive part of a system and their cost arises from one simple aspect - they use a lot of the commodity lead.  The cost of batteries used to act as the energy store in an off-grid or back--up system will probably be a large proportion of the total system budget. As the bulk of this cost is unavoidable - the lead - it makes sense not to waste the money being invested, by buying the wrong type of battery or buying poor quality batteries.

Rolls batteries are manufactured by the Surrette Battery Company of Nova Scotia, Canada and have been in the business of making high quality batteries since 1935. With over 80 years experience, they have built a well earned reputation for producing quality batteries with long cyclic lives and industry leading warranties.

In very simplistic terms, batteries (when connected in an electrical circuit) produce electrical current as the sulphuric acid reacts with the lead plates to form lead sulphate and, ultimately, water. When we recharge the battery we apply an electric current to reverse the process and reconvert it back to sulphuric acid and lead. When you hear people say that a battery should not be discharged fully - it is because allowing the lead and sulphuric acid to fully convert to lead sulphate and water makes it very difficult to reverse the reaction as water does not conduct electricity very well. So we try to ensure the 'electrolyte' (acid) remains at least a little bit acidic! This process will occur every time we discharge and recharge a battery, so we want this process to be as successful as possible (charge efficiency) and we want the battery to be able to do this as many times as possible (cyclic life). How well a battery does this is, in no small way, down to the design and manufacture of the battery. So, buying the right type of battery is important, but so is getting a good quality battery from a reputable battery manufacturer; it will save you lots of money in the long term.
 

What lead acid battery is best?

First of all, batteries are made differently to do different jobs. Batteries used to start cars are not the best type for storage and deep discharge; deep cycle batteries are unnecessarily heavy and have slower current delivery in cold weather to start cars. There really is no single battery good for all jobs (although AGM technology is the closest to this dream). For small to medium scale energy storage, Rolls deep cycle AGM batteries are excellent as they require no maintenance. Flooded wet cell deep cycle lead acid batteries are a better solution for large battery banks where the higher capital cost of a big system necessitates the longest cyclic life possible. However, wet cell technology requires the end user to take care of battery maintenance which involves time or cost and these batteries will vent gas in their normal operation, so the batteries need to be in a well ventilated storage area.

 

Rolls AGM Battery

Rolls AGM Battery

Range
 

The Rolls Battery Range - Red Series

To view Datasheets & Manuals, click on the Downloads tab above.

Model Battery Capacity (Ah @ C20) Size (L x W x H mm) Weight (kg)
S12-95AGM 85 260 x 169 x 237 25
S12-116AGM 105 307 x 169 x 215 30
S12-128AGM 115 328 x 172 x 236 33
S12-160AGM 145 341 x 173 x 309 44
S12-230AGM 210 530 x 209 x 218 61
S12-240AGM 215 381 x 178 x 371 60
S12-290AGM 260 521 x 269 x 224 78


The Rolls Battery Range - Series 2

To view Datasheets & Manuals, click on the Downloads tab above.

Model Battery Capacity (Ah @ C20) Size (L x W x H mm) Weight (kg)
R12-80AGM 80 260 x 169 x 237 23
R12-100AGM 100 307 x 169 x 215 27
R12-110AGM 110 328 x 172 x 240 30
R12-200AGM 200 522 x 240 x 240 56
R12-260AGM 260 522 x 268 x 240 73


The Rolls Battery Range - Lead Acid

Model Battery Capacity (Ah @ C20) Size (L x W x H mm) Weight (kg)
S-500EX 6 Volt 357 321 x 185 x 426 59
R12-100AGM 100 307 x 169 x 215 27
S605 6 Volt 450 320 x 181 x 426 55
6CS25P 6 Volt 820 559 x 286 x 464 144
S-1400EX 2 Volt 1000 321 x 185 x 426 57
4KS25P 4 Volt 1350 400 x 270 x 629 143
2YS31P 2 Volt 2430 394 x 229 x 803 129
 
Downloads
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If you would like to buy a battery simply click the button below and you will be taken to our sister website Advance Yacht Systems to complete your purchase.

 
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Please contact us if you would like more information or would like to discuss your requirements further. You can call us on 01794 523900 or fill in the form below.

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