That's fantastic!
I wholeheartedly recommend that you begin by mastering the art of capacity and voltage calculations, especially when discussing batteries—let's consider a common type of battery, the 18650. Please take the time to read the entire text.
To start, let's clarify some essential terminology, abbreviations, and units of measurement. Understanding these basics is crucial before delving into the intricacies of Battery Management Systems (BMS).
Returning to what OGITC aptly highlighted—here are some fundamental concepts:
A = Ampere: Our favorite unit for measuring electric current. We quantify current flow in amperes. For instance, using a Digital Multimeter (DMM), we can determine the current passing through a wire, a nickel strip, or a copper bar. This reading offers an instantaneous snapshot. For example, "Your TV is drawing 0.9A at the moment," might receive a response like, "That's good to know," followed by "0.9A at 230 volts!" which could lead to an awed "Wow!" (likely from an amused companion, haha). At this instant, my entire household draws:
1.62A at 220V, a momentary measurement.
Ah = Ampere-hour: This is particularly useful for measuring capacity. We gauge battery capacity in ampere-hours. I've focused on checking cell capacities since May, and it's been my primary activity. While my family, friends, and even acquaintances may not grasp why I'm rigorously testing cells, it has become my pursuit (Google "Lithium Addiction" for more insights). For instance, the last cells I tested exhibited 2047mAh, measured on June 25th with an internal resistance of 31 in charger number 2 (I have only three chargers, hence the pace is slow, but I'm still learning!). This means a 3.7V cell connected to a 3.7V load can supply 2.047A for an hour. Naturally, if the load demands just a tenth of 2.047A (0.2047A), the cell would last for 10 hours.
OGITC stands for OffGridInTheCity
These were some of my earliest lessons! (Now, about V volts, understanding volts, Ohm's law, power, resistance, and watts is crucial—oh, I adore watts! With a single figure, you can represent two numbers! And don't forget watt-hours, Wh, along with battery jargon like SD, SOH, SOC...).
Feel free to flood this space with questions, diagrams, schematics, and photographs!
Enjoy,
jes
Hi there Emmanijoa, I see you have many inquiries! That's excellent! I would definitely recommend beginning by becoming adept at understanding capacity and voltage calculations when talking about batteries, like the 18650 type. Be sure to delve into the entire FAQ section, where you'll find a helpful starter kit. Familiarize yourself with essential terms, abbreviations, and measurement units. Discussing BMS is futile without grasping its fundamentals. Revisiting OGITC's accurate points: our love for amperes is apparent. Amperes measure current, allowing us to determine how many amps flow through various materials with tools like a DMM, giving real-time readings. Fascinatingly, "The TV is consuming 0.9A... at 230 volts!"—amusing responses follow. My entire household right now is consuming 1.62A at 220V, reflecting an instant snapshot. Further, Ah (Ampere-hour) measures capacity, identifying battery capacities. Testing cells have been my focus since May. My family may not fully understand this obsession (Google "Lithium Addiction"), but it's indeed captivating. A 3.7V cell displaying 2047mAh on June 25th, with 31 IR, can offer 2.047A for an hour. If only 0.2047A is required, the cell lasts 10 hours! OGITC is OffGridInTheCity —learning these basics is essential! Know volts, Ohm’s law, resistance, power, watts – I admire watts for their comprehensive representation. Never forget watt-hours! Additionally, embrace technical jargon—SD, SOH, SOC…Remember to ask abundant questions, share diagrams, schematics, and images! Enjoy, jes
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