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Summary of Contents for Sun Fun Kits SFK V5 24v
- Page 1 Sun Fun Kits V5 24v Quick Build Manual Revision 1.0...
- Page 2 Before you Begin: Thank you for purchasing your Sun Fun Kits V5 24 volt DIY heated battery kit, diy battery kits make assembling your battery quick and easy and only require basic tools and hardware to assemble. We recommend having a basic understanding of DC wiring in order to assemble your battery pack and you will also need the following tools: ●...
- Page 3 Preparing your battery cells: In this manual we will be using the Ruipi REPT 150 cells, the kit has these cells picked and pre-installed for you with the heating pads and center fiberglass separators already installed. In the V5 24v kits we are using thin .15mm fiberglass separator sheets to keep our cell bank as thin as possible.
- Page 4 We are using dual heating pads in a 24v configuration and these are attached to the sides of the cells to provide for adequate battery heating. The completed battery block can be removed from the kit should you need to perform service, we also ensure the polarity has been set up properly.
- Page 5 Please take note of the cell orientation and ensure it matches the image above, if you find it does not, STOP the build and contact Sun Fun Kits Immediately. The V5 24 volt kit uses flexible busbars, these include a small heat shrink wrapping on them and needs to be removed to ensure proper contact with the larger terminals on the REPT 150 cells, use a utility knife to cut the heat shrink and remove it.
- Page 6 Begin by placing your bus bars in the orientation shown below, you DO NOT need to put a washer on top of the bus bars with the combination harness as it is using a large lug connector which acts as a washer, but you may put a washer on the posts that do not have a balance lead attached to it.
- Page 7 NOTE: The main power wires have a 90 degree bent lug, these attach to the cell. Note: CAUTION! In many prismatic cells the positive terminal is colored black and the negative terminal is colored brown! Please double check your cells with a volt/multimeter before continuing.
- Page 8 The heating pads share the main positive of cell 8. You will want to make sure the heating pad lug sits on top of the bms/active balancer lug. The negative (black lug) of the heating pad will connect to the HT port on the BMS. Once the wires have been connected we can then perform some cable management using some spiral wrap.
- Page 9 Secure the top riser plate with 5x M4x20mm countersunk bolts. We recommend only using hand tools for this process. After this process we will now install the BMS plate. You will use 5 of the M4x16mm button head screws with a washer to secure the plate to the riser. With version 5 all bolts are now exactly the same.
- Page 10 You can place some of the stick on wire keeps as needed, this will assist in securing wires used by the Gen 2 I/O switch. The SFK-8S-100 BMS includes 2 external temp probes, these can be mounted in the positions of your choice, use the included stick-on wire keeps as well as Kapton tape to mount them into position.
- Page 11 NOTE: Make sure the balancing lead is NOT connected to the BMS! This will be inserted in a later step. Examine the underside of the LID. V5 kits include the option of a RS-485 Data port that uses a RJ45 connector. The SFK-8S-100 BMS is set up to use half-duplex transmission mode and uses PINS 1 &...
- Page 12 Once cleaned, use isopropyl alcohol to wipe clean and then begin to attach the main BMS and cell wires. You will attach the main negative (black wire) harness to the lid and then begin attaching the remaining wires to the battery. Page: 12 V5 - 24v Manual - Revision 1.0...
- Page 13 With V5 24v Kits, the opening orientation of the lid is to its side, this allows easier management of the battery should you need to perform service / maintenance on the battery. Mount the black main lugs to the BMS using the included dual M6 bolts note: the wires have a slight u-bend to them as this provides sufficient slack for you to open/close the lid as needed.
- Page 14 Attach the Bluetooth switch control using the JST connectors, then tuck the remaining wire underneath the BMS plate. Attach the white active balancer activation wire to the active balancer and use one one of the stick on wire keeps to keep the wire in place. Secure the temperature probes at the location of your choice and mount with kapton tape.
- Page 15 There should be sufficient length to cover the entire perimeter of the case, you do not need to stretch the rubber, but keep a firm grip to prevent slack while installing. Once done use a utility knife to remove any excess for a flush fit. Page: 15 V5 - 24v Manual - Revision 1.0...
- Page 16 Verify your install works by turning on the bluetooth function, press the bluetooth icon and it will illuminate as blue indicating bluetooth is active. Press again to deactivate bluetooth functionality. You can turn on the active balancer by pressing the active balancer icon; the blue light indicates the balancer is on and working in normal mode.
- Page 17 Monitoring Apps & Tests: You can now connect to your battery and perform tests; visit Google Play Store or Apple IOS App store and search for: Sun Fun Kits BMS https://play.google.com/store/apps/details?id=com.companyname.sfkble&hl=en&gl=US https://apps.apple.com/tt/app/sun-fun-kits-bms/id1600445506 Page: 17 V5 - 24v Manual - Revision 1.0...
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