Frequently asked questions

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  • Battery group
    • Battery group
    • What are the advantages of using Cellpower batteries?

      Low self-discharge and superior performance  |  Cellpower batteries offer high quality at competitive price levels  |  The batteries are suited for every application - UPS systems, power tools, telecommunications and many more Service is provided by Cellpower after purchase read more

    • How can I tell when a battery no longer works?

      Diminished performance Decreased voltage Inability to be charged or retain charge Slowly or bulging container Acid corrosion read more

    • How long will my battery last?

      How long any battery lasts depends on many circumstances. A battery’s lifetime is largely dependent on how often - and how deeply - a battery is discharged. It is also important that the batteries properly charged and that the right charger is used for battery. With normal use - when a battery is charged and discharged infrequently - an operational lifespan of 5-8 years is perfectly realistic for gel and AGM batteries. When 2 V NiCd cells are used, lifespans of between 10 and 15 years can be achieved. When batteries are discharged frequently, however, this has a negative impact on their operational lifespan. It is also important to take the ambient temperature into account. For conventional purposes, 20°C is considered a normal ambient temperature. If the temperature of the environment rises above this value, battery lifespan will decrease. read more

    • What are AGM and Gel Batteries?

      AGM (Absorbed Glass Mat) and gel batteries are both examples of VRLA (Valve Regulated Lead-Acid) batteries. They are also known as SLA (Sealed Lead-Acid) batteries. These abbreviations refer to the safety valves in the battery’s lid. In common parlance, the term gel battery is used to indicate both AGM and Gel batteries. AGM batteries may also be called "membrane", "starved electrolyte" or "dry" batteries. read more

    • What are the advantages of AGM batteries?

      What are the advantages of the AGM battery? AGM batteries have a very low internal resistance, are capable to deliver high currents on demand and offer relative long service life, even when deep-cycled. AGM is maintenance free, provides good electrical reliability and is lighter than the flooded lead-acid type. It stands up well to low temperatures and has a low self-discharge. The leading advantages are a charge that is up to five times faster than the flooded version, and the ability to deep cycle. AGM offers a depth-of-discharge of 80 percent; the flooded, on the other hand, is specified at 50 percent DoD to attain the same cycle life. read more

    • RedTop, YellowTop and BlueTop batteries

      What is the difference between Redtop,YellowTop and BlueTop batteries? Intercel Europe helps you selecting the right Optima battery for your application. Click here to find out.

    • Where do I leave my batteries during the winter?

      For AGM batteries, Gel batteries and Lithium batteries it’s no problem to leave the batteries on board or in your camper, caravan, trailer or marine application. As the lower temperature will actually prolong their lifespan. Remember to charge the batteries completely and to ensure that no consumers are left connected. Voltmeters, timers, refrigerators and car radio memory are some of the stealthy consumers to look out for in this respect. Wet lead-acid batteries have to be regularly topped up and charged to avoid freezing. read more

    • What does VRLA, AGM, SLA and MF stand for?

      "VRLA" stands for Valve Regulated Lead Acid, "AGM" stands for Absorbed Glass Mat, "SLA" stands for Sealed Lead Acid and "MF" stands for Maintenance-Free. All 4 of these terms basically refer to the same type of lead-acid battery. An example of this would be the pbq General Purpose series. These battery products are typically all black in color and designed for standby applications. read more

    • What is Amp hour (Ah), milliAmp hour (mAh)?

      A common term in the battery industry is Ah and mAh, on this page is described which term means. read more

  • Technology
    • Technology
    • What are the temperature effects on batteries?

      Battery capacity (how many amp-hours it can hold) is reduced as temperature goes down, and increased as temperature goes up. This is why your car battery dies on a cold winter morning, even though it worked fine the previous afternoon. If your batteries spend part of the year shivering in the cold, the reduced capacity has to be taken into account when sizing the system batteries. The standard rating for batteries is at room temperature 25 degrees C (about 77 F). At approximately -22 degrees F (-30 C), battery Ah capacity drops to 50%. At freezing, capacity is reduced by 20%. Capacity is increased at higher temperatures - at 122 degrees F, battery capacity would be about 12% higher. read more

    • What are the definitions of "deep-cycle" and "standby" use?

      Batteries for deep-cycle applications "Deep-cycle" use – using the battery as a direct power source: Batteries used in deep-cycle applications are used intensively, being charged and discharged many times over the course of their operational lives. Batteries capable of withstanding deep-cycle use are therefore best suited for electric wheelchairs, golf trolleys, boats, electric lawn mowers, medical equipment and toys. Deep-cycle batteries can also be used as power sources for electric motorbikes and floor scrubbers. Batteries for standby applications "Standby" use – using batteries as backup power: Batteries used in standby applications are predominately used to supply emergency power, helping prevent any damage that may be caused by sudden loss of mains power. For standby power applications, so-called stationary or standby batteries are often used. These batteries are rarely discharged and their charge is constantly maintained. read more

    • What is AGM battery technology?

      Valve-regulated lead-acid batteries offer many advantages. They are easy to use, require minimal maintenance and will work regardless of how they are positioned. This has made VRLA batteries the go-to choice for a wide range of battery applications – especially those based on AGM battery technology. But what is so special about AGM battery technology? AGM battery technology was first developed in the 1970s; the AGM stands for Absorbed Glass Mat, which refers to the way the batteries are constructed. Instead of simply flooding the battery or using gel to stabilize the acids in the cells, the electrolytes in AGM batteries are absorbed and immobilized by fiberglass mats between the plates. This means reactions between acids and the plates can happen more quickly, which allows for higher currents during charging and discharging. read more

    • What is a series circuit?

      A series connection or circuit is used to increase total potential (colloquially known as voltage). In a series circuit, the capacity remains the same. To provide an example: if 30 batteries rated for 12.8 V at 100Ah are connected in series, this creates a battery system capable of supplying 384 V at 100Ah. When creating a series circuit, it is also very important that all connecting cables have the same length and thickness. In a series circuit, the positive terminal of one battery is connected to the negative terminal of another. The remaining unconnected positive (+) and negative (-) terminals are then connected to the device one intends to power. These terminals are also indicated as the “end” positive and “end” negative terminals. Batteries with different capacities (Ah) and voltages (V) may never be connected to each other in series. We also advise that when batteries of the same voltage and capacity rating are assembled into a single battery system, they be of the same brand and production series and preferably of the same production date. read more

    • What is a parallel circuit?

      A parallel connection or circuit is used to increase capacity. By connecting two or more batteries in parallel, their total output power (Ah) is added up while their voltage (V) remains the same. To connect the batteries in parallel, the positive terminal of one battery is connected to the positive terminal of the next, while the negative terminal of the first battery is connected to the negative terminal of the next. To provide an example: if 10 batteries rated for 12V at 50Ah are connected in parallel, this creates a battery system capable of supplying 12V at 500Ah. One should always remember to use connecting cables of the same thickness and length when building a parallel circuit. As with series circuits, the batteries with different capacities (Ah) or voltages (V) may never be connected to one another in parallel. Besides using batteries rated for the same capacity and voltage when creating a parallel circuit, Intercel recommends using only batteries of a single brand and production series. Ideally, one should use batteries that were produced on the same more.

  • Charge
    • Charge
    • How do I charge my battery?

      Correct charging makes the difference, although the influence is often underestimated, selecting the right charger is half the joy. Choosing the wrong charger can cause direct or indirect damage to the battery and shorten its lifetime. pbq has over 10+ years of experience in valve regulated lead-acid batteries. We often see that there is no good match between the lead-acid battery charger and the battery, having a negative influence on the performance of the battery and its life time. In order to choose the right charger for your battery, it is important to understand the characteristics of an AGM battery. read more

    • How do I charge my lithium batteries

      Can I use my lead-acid battery charger to charge a Lithium battery? NO! As per the instructions supplied with each charger, lead-acid chargers are specifically designed only for sealed VRLA lead-acid batteries. Do not use on any other type. Intercel Europe will not be responsible for damaged chargers, or batteries, due to incorrect compatibility of different battery chemistries. Some Lithium battery manufacturers say that you can use any charger, but Intercel strongly disagrees. Severe damage and or fire can result. read more

  • Emergency Lightning
    • Emergency Lightning
    • When should a battery pack for an emergency lighting fixture be replaced?

      According to the NEN 1010 and NEN 1838 safety standards, emergency exits and escape routes must be illuminated by a minimum of 1 Lux at all times. In the event of a power failure, emergency lighting must be able to provide this level of illumination for a minimum of one hour. Over time, however, batteries lose their capacity. The manufacturer of our battery packs indicates a maximum operational lifespan of 4 years. Though the battery is still likely to function after this 4 year period, they will never deliver the required light output. Therefore, you are legally obligated to replace the battery pack once every four years. When you meet this requirement, your battery packs will always supply the necessary hour of electricity to your emergency lighting fixtures. read more

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