In addition, heat raises the voltage while cold causes a decrease. Calcium, an additive that makes the battery maintenance-free, raises the voltage by 5–8 percent. Lead acid comes with different plate compositions that must be considered when measuring SoC by voltage. Li-phosphate has a very flat discharge profile, making voltage estimations for SoC estimation difficult. Figure 1 reveals the flat voltage profile of Li-phosphate (LiFePO) batteries.įigure 1: Discharge voltage of lithium iron phosphate
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While this characteristic is desirable as an energy source, it presents a challenge for voltage-based fuel gauging as it only indicates full charge and low charge the important middle section cannot be estimated accurately. The discharge voltage curves of Li-manganese, Li-phosphate and NMC are very flat, and 80 percent of the stored energy remains in the flat voltage profile.
While voltage-based SoC works reasonably well for a lead acid battery that has rested, the flat discharge curve of nickel- and lithium-based batteries renders the voltage method impracticable. This makes the voltage-based SoC method impractical for a battery in active duty.Įach battery chemistry delivers its own unique discharge signature. To get accurate readings, the battery needs to rest in the open circuit state for at least four hours battery manufacturers recommend 24 hours for lead acid. The resulting agitation distorts the voltage and it no longer represents a correct SoC reference. The most blatant error of the voltage-based SoC occurs when disturbing a battery with a charge or discharge. Measuring state-of-charge by voltage is simple, but it can be inaccurate because cell materials and temperature affect the voltage. You can follow the game's development via Twitter.Explore SoC measurements and why they are not accurate. Gravity Circuit is in active development by a small and dedicated core team. Uncover and rescue them, and unlock new powers!Įach with their unique set of mechanics, your platforming and combat skills will be tested against an armada of enemies and bosses! Stages are packed with secrets and innocent civilians alike. In your quest you will acquire many new powers, which will allow you to go even further beyond!īy channeling your energy into devastating punches, perform satisfying combos and send foes flying, causing destruction and mayhem in the process! Reminiscent of classic platformers from the 80s and 90s, with action dialed to maximum, channel your power into your fists and send foes flying, or grapple them to get up close and personal. As the world's last line of defense, journey through futuristic environments, and take down the evil mastermind behind this chaos. Severely weakened Guardian Corps are left with no other choice but to call upon a hero of the previous war: the lone operative, Kai, who harnesses the powers of the mysterious Gravity Circuit. Defeated decades ago, it has re-emerged from the shadows with a unique goal, complete world domination. In a post-apocalyptic world populated by sentient robots, its inhabitants are once more threatened by an old foe, the Virus Army. About This Game Gravity Circuit - a flashy action packed 2d platformer in the spirit of console classics.