RESEARCH 》 My Lab Battery Purchase and Service logs for Research

ID Mfd on Purchased on Service Expired on Type Details Specs Purchased for/in Now installed in/status Model Number Serial Number Updated on

6 01-Mar-2018 16-Jul-2018
Lead Acid Exide Chloride Safepower 12V 7Ah APC BX600CI-IN UPS now in APC BX600CI-IN UPS CS7-12 4PJL 292997 16-Jul-2018
5 01-Jun-2016 08-Jun-2017
Lithium-ion Mi Power Bank (White) 20000mAh, 5V 2Amp x2 Solar offline low-power bkp Solar offline low-power bkp YDDYP01 - SKU: VXN4154IN 12330/00179841 08-Jun-2017
4 24-Mar-2017 N.A
1-Jun-2017
1-Jul-2017
Lithium-ion 18650 (x8 4x2 configuration) Lithium-ion cells, 14.8V 4.4AH

Service2 - 1-Jul-2017: rebuilt into x6 3x2 11.1V 4.4AH config for new 11.1V 10A PWM Li-ion Solar Charge Controller repurposed from old ACER Aspire 4810T laptop and Digisol 3G/4G portable WiFi router now in Frontech CFL UPS (solar) 19-Jul-2017
2 17-Sep-2014 15-Oct-2014
10-May-2016
20-Mar-2017
14-Jul-2018 (1396 days) Lead Acid APC BX600CI-IN UPS 12V 7.2AH APC BX600CI-IN UPS n.a LONG WP 7.2-12 OM-818693 E21438013118 19-Mar-2017
3 15-Jun-2015
15-Apr-2016
19-Mar-2017
20-Mar-2017 (644 days) Lead Acid Amptek 12V 7.6AH Frontech CFL UPS External Battery (solar) n.a 24-Mar-2017
1 26-Aug-2014
17-Jun-2015
9-May-2016
26-Aug-2016 (731 days) Lead Acid Amptek 12V 7.6AH Frontech CFL UPS Battery (solar) n.a 19-Mar-2017

Here is a complete log of my lab battery purchase, service record which I maintain in Google drive. These I use for my home (or my family generic use) as well as a part of my home lab. I maintain a detailed log this way to monitor the failure rate of these batteries. This will allow me to select a specific brand/model which has higher success rate and to monitor any premature failure/expiry. The service log helps me to monitor and schedule the next service routine so that I can maintain these batteries in tip-top condition.

Suggested Topics:

Generic Home Lab Research

💎 TOFFEE-MOCHA new bootable ISO: Download

💎 TOFFEE Data-Center Big picture and Overview: Download PDF

Рекомендуемые темы:

TOFFEE-Mocha Documentation :: TOFFEE-Mocha - Jitter feature ↗
Saturday' 13-Mar-2021

TOFFEE-Mocha WAN Emulator Jitter Feature ↗
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TOFFEE (and TOFFEE-DataCenter) deployment with VPN devices ↗
Saturday' 13-Mar-2021

In case if you need to deploy TOFFEE along with your existing VPN devices you can deploy the same as shown below. This will allow your VPN devices to encrypt your TOFFEE WAN Optimized network data. NOTE: Make sure about the VPN deployment topology done in the right order. Else TOFFEE (LAN side) may get VPN encrypted packets which may not be possible (and or difficult) to further optimize. Hence always make sure to deploy them in a topology suggested below so that TOFFEE devices are out of VPN tunnel.

Network MTU research and optimization of WAN Links ↗
Saturday' 13-Mar-2021

Network MTU research and optimization of WAN Links

Raspberry Pi as a Networking Device ↗
Saturday' 13-Mar-2021

Raspberry Pi is often used as a single board computer for applications such as IoT, hobby projects, DIY, education aid, research and prototyping device. But apart from these applications Raspberry Pi can be used for real-world applications such as in making a full-fledged networking devices. Raspberry Pi is a single board ARM based hardware which is why it is also classified as ARM based SoC. Since it is ARM based it is highly efficient, tiny form-factor and lower in power consumption with moderate computational power. This will allow it to work several hours on emergency battery backup power supply such as low-cost domestic UPS and or some renewable energy source, which is a prerequisite for a typical networking device.

VPN Network Optimization via TOFFEE WAN Optimization ↗
Saturday' 13-Mar-2021

VPN Networks may degrade network performance due to various packet processing overheads such as encryption and by adding extra network protocol header(s) (such as IPv4/IPv6, IPSec, etc). This may inflate near MTU sized packets and causes excessive packet fragmentation. Here are the few examples of packet processing involved in a VPN (or a VPN like) Tunnel. With TOFFEE you can optimize these packets even before they get processed on to a VPN device. TOFFEE optimizes packet contents (application payload and transport headers) so that these TOFFEE optimized packets when they get processed by VPN devices (or VPN software stack) they may never need further packet fragmentation. Here is a deployment scenario of TOFFEE with VPN devices.

Demo TOFFEE-DataCenter WAN Optimization packaging feature ↗
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TOFFEE-Butterscotch a TOFFEE for Home/SOHO Internet/WAN bandwidth ↗
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TOFFEE-Butterscotch a TOFFEE for Home/SOHO Internet/WAN bandwidth

Setting up a WAN Emulator within VirtualBox ↗
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Detect and Monitor Failing Harddrive in Linux - My Seagate 500GB HDD Died ↗
Saturday' 13-Mar-2021

My 500GB Seagate Barracuda 7200RPM hard-drive suddenly started making mild clicking noise. I found this happening since morning. I was suspicious that something wrong in this drive and when I opened the Linux Disks app, I can find the cause of this issue. The disk is increasingly getting read errors. Besides I can see various other parameters such as Power-On Hours, Temperature, Head flying hours, etc.

Featured Educational Video:

Watch on Youtube - [17445//1] 294 - VRF - Virtual Routing and Forwarding - Introduction ↗

Building my own CDN - Moving away from Joomla to non-Joomla website - Update: 01-Oct-2016 ↗
Saturday' 13-Mar-2021

Seems there are couple of Inmotionhosting servers are down. And one of the server includes The TOFFEE Project website hosted server. I was in touch with the Inmotionhosting team trying to resolve the same. I found a unique issue that all my website files are intact and the Joomla database. But the Joomla database tables are completely wiped out and missing. Besides there is also a sort of upgrade going on in their servers. Luckily I have the most recent backup of the entire website.

TEST CASES :: TEST RESULTS :: TOFFEE-Mocha-1.0.14 Development version ↗
Saturday' 13-Mar-2021

My sample Wireshark packet capture files for research ↗
Saturday' 13-Mar-2021

I have a huge repository (or collection) of sample Wireshark packet capture files for reference. I use them extensively for research and development of TOFFEE as well to understand various protocol PDUs and protocol standards. I personally collected various test captures via Wireshark during my test and experimental research setup during the course of TOFFEE development. Say if you are a student and learning Networking and or say VoIP data and VoIP packets, you can analyse my VoIP sample Wireshark captures. Or in other case assume you are doing some quick research (or development) and want to refer few handful of VoIP packets then you can download and analyse my sample packet capture files.

First TOFFEE-Mocha Code Release ↗
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TOFFEE-Mocha is my dream project which I thought working on it since several years. I want to make a WAN emulation software which is straight forward and simple to use. I used tc scripts along with iptables for testing my TOFFEE (and TrafficSqueezer before TOFFEE) and I am not quite satisfied with the same. As one can understand these scripts are not meant for WAN emulation.

Detect and Monitor Failing Harddrive in Linux - My Seagate 500GB HDD Died ↗
Saturday' 13-Mar-2021

Research :: Optimization of network data (WAN Optimization) at various levels:
Network File level network data WAN Optimization

Learn Linux Systems Software and Kernel Programming:
Linux, Kernel, Networking and Systems-Software online classes

Hardware Compression and Decompression Accelerator Cards:
TOFFEE Architecture with Compression and Decompression Accelerator Card

TOFFEE-DataCenter on a Dell Server - Intel Xeon E5645 CPU:
TOFFEE-DataCenter screenshots on a Dual CPU - Intel(R) Xeon(R) CPU E5645 @ 2.40GHz - Dell Server

💎 TOFFEE-MOCHA new bootable ISO:	Download

💎 TOFFEE Data-Center Big picture and Overview:	Download PDF