# Feature Request: Bypass Battery in Desktop-Mode **URL:** \ **Category:** Framework Laptop 16\ **Tags:** framework-laptop-16-amd-7040\ **Created:** [July 26, 2023, 10:51am UTC](https://community.frame.work/t/feature-request-bypass-battery-in-desktop-mode/34529 "2023-07-26T10:51:44Z")\ **Posts on this page:** 1\ **Showing post:** 13
**Author:** ![FlorisNielssen](https://avatars.discourse-cdn.com/v4/letter/f/ac91a4/32.png) [@FlorisNielssen](https://community.frame.work/u/FlorisNielssen)\ **Post date:** [July 26, 2023, 3:06pm UTC](https://community.frame.work/t/feature-request-bypass-battery-in-desktop-mode/34529/13 "2023-07-26T15:06:04Z")
I agree with @Adrian_Joachim, in that you probably don’t need it. Maybe you shouldn’t even **want** it. Some background: On the FW13, the following bios-functionality is available: 1. Charge limit (see [FW bios releases](https://knowledgebase.frame.work/framework-laptop-bios-releases-S1dMQt6F), from version 3.07) You can set it to for example 80% to save your battery life. 2. Battery disconnect Available since the first version. 3. Boot without battery (see [FW bios releases](https://knowledgebase.frame.work/framework-laptop-bios-releases-S1dMQt6F), from version 3.06) There are a few buts though: Option 2. resets when you plug in a charger again, as also said before. It is meant for when you are opening up the laptop. With bios version from 3.06 (option 3.), you can run the FW13 without a battery attached. Perfect if you want a [Framedeck](http://community.frame.work/t/elevated-systems-cyberdeck/10603) or use the FW13 [Coolermaster-case](https://frame.work/de/en/products/cooler-master-mainboard-case). This limits availabe power though (depending on the charger you use). - With a 60W charger + battery: The laptop can boost above 60W without a power failure: it will also drain the battery a (tiny) bit, depending on how long this boost holds. - With a 60W charger, without the battery: You will be limited to 60W. You can however use a 100W charger to overcome this problem. With the FW16, these options are not confirmed (nor denied) at this point, although I would definitely **expect** options 1 and 2 to be available from very soon on in the bios. If these options are available, I would recommend gaming with the battery attached, to be able to briefly get more power out of the laptop. Or possibly use a higher power charger. In the end you will be limited to the cooling capacity of the laptop and maximum temperatures before throttling of the CPU/GPU. Loads however are not continuously the same, so the extra boost is nice when the temperature allows it. Coming back to battery wear, what Adrian\_Joachim said earlier is definitely true: > [@Adrian\_Joachim](#): > > 100 71%-\>70% and back cycles don’t cause anywhere near as much wear as 1 100%-\>0% one. It is way worse for battery wear to cycle from 100% to 0% once than to cycle around 70% a hundred times. For a Li-Ion battery, a charge/discharge curve typically looks like this: ![Li-ion+Discharge+Voltage+Curve+Typical-1520800647](https://us1.discourse-cdn.com/flex001/uploads/framework3/original/3X/5/a/5a0e22f8d8e68d4fd888feaf65c97104d78bb4dd.jpeg) Large drop between 100-90%, almost flat between 80-20%, and again a large drop between 20-0%. These large drops cause the worst wear. Charging/discharging in the flat area almost none. So, if you set the charge limit to say 80 or 70%, you will be in the flat, low-wear area and yes, the battery will charge/discharge a bit for higher loads, but without a noticeable impact. Concluding: If you set the charge limit right, battery wear in desktop mode due to charging/discharging should not be noticeable, but it will allow higher boosts. For reference: I have a FW13 as a daily driver for 1.5 years now, most often used in desktop mode and the charge limit set to 80%. According to linux’ upower, I have 52 charge cycles. --- _[View the full topic](https://community.frame.work/t/feature-request-bypass-battery-in-desktop-mode/34529)._