How to replace laptop 18650 lithium cells and increase capacity and laptop runtime. My laptop battery only lasted less than 90 minutes. A new original Lenovo battery was out of the question. It is just too expensive for this old machine. The choice was:
1. Buy a generic battery of unknown cell quality.
2. Buy an original Lenovo battery second hand.
3. Rebuild my laptop battery by changing the 18650 lithium-ion cells inside.
Timestamps
- Opening up the battery 00:30
- Drawing a diagram or schematic of the battery wiring 00:45
- Pre-tinning and preparing the 18650 cells for soldering 01:14
- Soldering the batteries together into a pack 01:48
- Testing battery voltage of the rebuilt pack 03:48
- Desoldering the BMS (battery management system) from the old original laptop cells 03:50
- Soldering the battery pack onto the BMS 04:02
- Restarting the BMS by bridging the positive end of the battery pack to the positive terminal of the BMS 04:28 (see this video for more details)
- The tested total capacity of the battery pack in mAh 05:05
- Inserting the rebuilt battery into laptop 05:40
- Results 1 Day later after total discharge of the rebuilt battery 06:30
Battery info view software
www.nirsoft.net/utils/battery...
Things used:
- 6 18650 cells for the rebuild. I luckily found mine from a Samsung battery that was to be recycled by a laptop shop. You can buy this type of batteries brand new as well.
- Nickel strips to join the batteries.
- wires/cables for wiring
- basic tools, screwdrivers etc
- Solder and a soldering iron with the biggest tip you have. I set mine to 400 C to get the job done fast.
- Soldering flux
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Stuff I use to make videos (for those curious/want to start youtube)
- Videos shot on my trusted 2014 Samsung Galaxy S4
- Lapel Mic: DIY made from old headset parts
- Microphone for voiceover: Guitar Hero Konami microphone
- Video editing software: Movavi video editor plus 15 www.theprofitfans.com/movavied...
- PC Screen capture & secondary editing software: Camtasia 9 www.theprofitfans.com/camtasia
- Audio editing and speedup: www.audacityteam.org/
- Main laptop: 2014 Lenovo G510 with i7-4700MQ (upgraded from i5 4210M) CPU and 12GB ram (all working smooth and lovely)
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25 ноя 2019
