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<blockquote data-quote="WayneF" data-source="post: 355900" data-attributes="member: 12496">Very different. For one thing, lithium is not nickle.&nbsp; It was only the old NiCd cells (25 years ago) that had the so-called &quot;memory effect&quot;.NiMH and Lithium, no memory, recharge early and often.&nbsp; Same as your lead acid car battery. Good battery practice.Here is some knowledgeable advice:<a href="http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table" target="_blank">Frequetly Asked Questions on How to Charge Batteries</a>It says things like:<ul>
<li data-xf-list-type="ul">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Control discharge. Each cycle wears the battery down by a small amount. A partial&nbsp; discharge before charge is better than a full discharge. Apply a&nbsp; deliberate full discharge only to calibrate a smart battery and to&nbsp; prevent “memory” on a nickel-based pack. </li>
<li data-xf-list-type="ul">&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Avoid abuse.&nbsp; Like a machine that is exposed to strenuous work, a battery wears down&nbsp; more quickly if discharged harshly and if force-charged with high&nbsp; currents. 
 </li>
</ul>There's no reason to be cruel to our batteries.&nbsp; <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />&nbsp; Early and often is good for the battery, and good for our shooting schedule too.&nbsp;&nbsp; I carry spares, but I have never needed a spare camera battery (speaking of one day - recharge at night, if significant use).FWIW (of interest to me):&nbsp; I drive a Toyota Prius (a hybrid with batteries).&nbsp; It uses about 170 D cell NiMH cells in series, about 200 volts.&nbsp; The D cells are square and have connector tabs on them, but they are just NiMH D cells, 7 amps.&nbsp; The car computer is charging them all the time, and yet the battery warranty is eight years (nothing else is near 8 years).&nbsp; However, the computer will not charge them over 80%, or let them go under 40%.&nbsp;&nbsp; Full discharge is not a good thing.</blockquote>

[QUOTE="WayneF, post: 355900, member: 12496"] Very different. For one thing, lithium is not nickle. [B]It was only the old NiCd cells[/B] (25 years ago) that had the so-called "memory effect". NiMH and Lithium, no memory, recharge early and often. Same as your lead acid car battery. Good battery practice. Here is some knowledgeable advice: [URL="http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table"]Frequetly Asked Questions on How to Charge Batteries[/URL] It says things like: [LIST] [*] [FONT=Arial][SIZE=2][B]Control discharge[/B]. [COLOR=#ff0000] Each cycle wears the battery down by a small amount[/COLOR]. A partial discharge [COLOR=#ff0000]before charge is better than a full discharge[/COLOR]. Apply a deliberate full discharge only to calibrate a smart battery and to prevent “memory” on a nickel-based pack.[/SIZE][/FONT] [*] [FONT=Arial][SIZE=2][B]Avoid abuse[/B]. Like a machine that is exposed to strenuous work, [COLOR=#ff0000]a battery wears down more quickly if discharged harshly[/COLOR] and if force-charged with high currents. [/SIZE][/FONT] [/LIST] There's no reason to be cruel to our batteries. :) Early and often is good for the battery, and good for our shooting schedule too. I carry spares, but I have never needed a spare camera battery (speaking of one day - recharge at night, if significant use). FWIW (of interest to me): I drive a Toyota Prius (a hybrid with batteries). It uses about 170 D cell NiMH cells in series, about 200 volts. The D cells are square and have connector tabs on them, but they are just NiMH D cells, 7 amps. The car computer is charging them all the time, and yet the battery warranty is eight years (nothing else is near 8 years). However, the computer will not charge them over 80%, or let them go under 40%. Full discharge is not a good thing. [/QUOTE]

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