![]() ![]() Generally, Gel-cell batteries are better deep cycle performers than AGM batteries, and AGM batteries are often able to crank larger currents than Gel-cell batteries. However, AGM and Gel-cell batteries may have plates packed more tightly, without increasing the danger of the cells short-circuiting due to the lead-phosphate crystals buildup, with ions having a shorter path to travel. These types of batteries are obviously different, but they operate in the same way as wet/flooded lead-acid batteries, except that ions move much more freely in the wet/flooded cells than in AGM and especially gel-cell batteries. Gel-cell batteries feature diluted sulfuric acid mixed with silica in the form of silica gel - hence the name.ĪGM batteries feature diluted sulfuric acid suspended in a woven glass mat - hence the name. 12 volt deep cycle battery free#We say that these batteries are 'almost' maintenance free - it is good practice to periodically check the battery if there are any signs of physical damage, corrosion, and similar. ![]() Gel-cell and AGM (Absorbent Glass Mat) SLA (Sealed Lead-Acid) batteries are almost maintenance-free, spill-proof batteries that are very vibration resistant and may operate in almost any position - some models may operate properly even when turned up-side-down. Typical example of flooded 12V 100Ah battery is Trojan SCS150 (photo on the right) featuring a nominal (20h) capacity of 100Ah and Reserve Capacity (RC) of 150 minutes (2.5 hours).Īlthough it is not designed as a starting or dual-purpose battery, Trojan SCS150 nonetheless features CCA rating of 530 Amps and MCA rating of 650 Amps - all that at an acceptable weight of only 50 lbs (~22.6 kg). These batteries still have some advantages over Gel-Cell and AGM batteries, but all in all, for most applications Gel-Cell and AGM batteries are the way to go.īut, if You prefer/need flooded 12V 100Ah, there are several models that are good performers and that come at an acceptable price. Wet/flooded 12V 100Ah batteries are still present on the market, but since they are not maintenance-free and they are not spill-proof, we can't recommend them. Connecting two dual-purpose BCI Group 31 batteries in parallel in order to achieve 2000+ CCA Amps. Using a single BCI Group 8D deep-cycle or dual-purpose battery as starting battery, Connecting several smaller starting batteries in parallel in order to achieve 1500+ starting Amps, Ultracapacitor based Engine Starting Modules (ESM) may easily provide 1500+ starting Amps, The main reason for not having starting 100Ah batteries is that even dual-purpose 100Ah batteries are able to easily provide 900-1000 CCA Amps and with some models going even well above 1000 CCA Amps.įor applications where extra-large starting currents (for example, 1500+ Amps) are required there are few possible solutions: The most popular 12V 100Ah batteries are deep cycle models, with few dual-purpose models. The most popular 12V 100Ah batteries are listed in the following comparison chart: Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date offers and prices. ![]()
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