 |
|
 |
| |
|
|
| |
| |
|
Ritar RT12240EV |
| |
| |
|
|
| |
| |
| Description |
| |
We import batteries for use in IT hardware. In 2011 we started importing EV (electric vehicle) rated cells for use in golf carts etc. I then realised that I could try using one of these on my track car. It has worked fine. I could start the car 20 times in a row. I have just changed the battery over (Feb 2020) and the one I took out had a manufacturing date of 2014. I dont think its been in there for 6 years, probably more like 3 but it shows there is good durability. The old cell still worked but I could hear it not starting as quickly as it used to.
The car is an e46 M3, which has a 3.2L Straight six. As it is a track car most of the electrical devices have been stripped out. It has no fan or stereo for example. The alternator is standard.
I made the bracket myself and mounted the battery in the same place the original goes. I've included some photos of how I have the battery mounted in my car. There are two types of terminal, F3 which is the external tab with a hole in it, and F13 which bolts into the battery. These cells are all F13, so bolting through the eye of your wiring o-ring directly on to the battery.
We have been selling cells for people to use with cars and sometimes people want a slightly heavier cell for when they have stereo or keep the air conditioning fans on high with the engine off. In that case this 24AH cell should be used instead of the 18AH I normally use. The weight difference is circa 1.1KG
The terminal type on the 24AH is the F13, bolting into the battery type. This uses a M5 Machine screw. We include these and a pair of washers and anti slip rings.
F13 PDF Manual https://secure.ups-trader.co.uk/index.php?controller=attachment&id_attachment=16
Here is a video of the car starting with the new cell pack installed: https://youtu.be/JnofFtXthZs
This is a good, cheap source of cell for track cars. You can get lithium cells which are lighter, but also cost hundreds of pounds.
All packages are sent using DPD and TNT, on a next working day, 24H delivery service. Orders before 2PM will be dispatched that day, and you should expect to receive the goods the next working day. After 2PM we try our best to dispatch orders, but cannot guarantee this. If you must have your cells urgently, let us know and we will prioritise as best we can. DPD send out emails giving ETA (estimated time of arrival) of their driver and your parcels so you can plan your day around the delivery. You only pay one shipping charge (for UK mainland orders) no matter the quantity ordered. 1x or 100x, shipping stays the same. All deliveries are insured. If there are any problems in transit we fix them, no quibbles. We ship internationally.
VAT is included in the buy it now price, and if you are VAT registered you will be able to reclaim this. VAT receipts are sent out via email on request.
|
| |
| |
| Specifications |
| |
|
Height 170mm (measured to the top of the terminal) Width 78.5mm Depth 182.5mm Weight 7000 g (+/- 4% tolerance) Battery Voltage 12V DC Battery Capacity 24AH
Float Voltage range 13.7 to 13.9 Volts DC Equalisation Charge Voltage 14.6 to 14.8 VDC Recommended max charge current 6A Max Discharge current 240 A (burst. CCA is higher)
https://secure.ups-trader.co.uk/index.php?controller=attachment&id_attachment=16
We mostly get them in grey and blue, but sometimes plain black colour too
Advanced tips and technology advice
An important tip is that users should not "over discharge" as this is the leading cause of premature battery failure necessitating replacement. As you can see from the above chart, a cell that is discharged 100% on each cycle lasts 1/3 of the life of a unit that is discharged to its 50% point. As soon as you notice the cell is low on energy, immediately stop using it and fully recharge. Continuing at this point will seriously degrade the cells ability to hold charge in the future. It is worth realising that recharging before this point will result in a much longer serviceable life for your cell.
In order to know when your battery is discharged, the best method is to measure the voltage (DC) across the terminal. As a bullet proof cut off point, do not go below 10.5 volts. However, the lowest permissible voltage changes depending on the load the cell is placed under. C is the battery capacity in Amp Hour (Ah).
If the discharge current is less than 1/5 of the battery capacity then use the 10.5V.
If the discharge current is up to the battery capacity then use 10.2V.
If the discharge current is double the battery capacity then use 9.6V as the 100% discharged final voltage.
If for example we are using a 7.2 AH cell, then our cut off voltages would be: 10.5A for up to 1.44 Amp discharge rates, 10.2V for up to 7.2 Amp discharge rates, and 9.6V for anything over 7.2 and under 14.4 Amp discharge rates. Do not draw more than 3xC continuously, or the rated burst maximum current.
Keep charged at all times. Charge after use and store in a charged state. If not used for a period, periodically check charge and top up as necessary. Modern chargers will all be fine to charge this cell. More information is on the specsheet if needed.
About
Ritar: Ritar are a large scale manufacturer of top quality SLA
batteries. They have become respected in the industry and have supplied
the US military and NASA, and have been used onboard the US Space
shuttle. They are listed on the NASDAQ stock exchange and have UL, CE,
ISO9001, ISO140001, OHSAS18001 certifications and comply with all
international standards on cell requirements. They have a 2 million
square foot production facility and large R+D workshops. They are one
of the few companies who value their workforce, and whereas many cell
manufacturers have had to close after recent government inspections,
Ritar's practices were commended.
|
| |
| |
|
|
Image Links
In 2019 eBay banned and blocked HREF links in adverts.
This had an effect on our adverts - clicking on a thumbnail image to view a high resolution version no longer worked.
In response we decided to embed medium resolution images in all of our adverts.
We want to maintain the ability for customers to view and download high resolution images.
To view a high resolution image, copy one of the below URLs into your browser address bar.
https://secure.ups-trader.co.uk/public-pic/MBJdJZq_large.jpg
https://secure.ups-trader.co.uk/public-pic/EVrBHLk_large.jpg
https://secure.ups-trader.co.uk/public-pic/ghPyEFG_large.jpg
https://secure.ups-trader.co.uk/public-pic/qZZjGv0_large.jpg
https://secure.ups-trader.co.uk/public-pic/WeyMg7d_large.jpg
https://secure.ups-trader.co.uk/public-pic/g02zFD1_large.jpg
https://secure.ups-trader.co.uk/public-pic/5RiHaSM_large.jpg
https://secure.ups-trader.co.uk/public-pic/FH9YJKh_large.jpg
https://secure.ups-trader.co.uk/public-pic/CyiLtzc_large.jpg
https://secure.ups-trader.co.uk/public-pic/ZIT2pjq_large.jpg
https://secure.ups-trader.co.uk/public-pic/wmCnVO5_large.jpg
https://secure.ups-trader.co.uk/public-pic/3EPNe5j_large.jpg
https://secure.ups-trader.co.uk/public-pic/sB15G8Y_large.jpg
https://secure.ups-trader.co.uk/public-pic/JNpyhXg_large.jpg
|
|
| |
|
|
|
|
|
|
|
| |
|
 |
|
 |
|
