> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # 12V 8Ah Lithium Iron Phosphate Battery (LiFePO4, 4.8mm/F1) **Type:** Product page · **SKU:** ASL4541A · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia) **Page:** https://core-electronics.com.au/12v-8ah-lithium-iron-phosphate-battery-lifepo4-48mmf1.html ([markdown](https://core-electronics.com.au/12v-8ah-lithium-iron-phosphate-battery-lifepo4-48mmf1.html.md)) With all the benefits of cutting edge lithium technology. LiFePO4 batteries offer longer service life than traditional lead acid batteries, plus weigh less than HALF as much as SLA batteries. ## Pricing - **Price:** $104.95 (inc GST) — $95.41 AUD, exc GST - **Quantity discounts:** 5+ $91.59 (exc GST) · 10+ $88.73 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 3 today, and up to 300 more in 2–6 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ASL4541A:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ASL4541A:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This 12V 8Ah LiFePO4 replacement battery is compatible in size with traditional 7Ah/9Ah SLA batteries, but with all the benefits of cutting edge lithium technology. LiFePO4 batteries offer longer service life than traditional lead acid batteries, plus weigh less than HALF as much as SLA batteries. LiFePO4 also provide more usable life per cycle, allowing for longer run times by holding a higher voltage until capacity is almost exhausted. These batteries will also maintain 80-90% charge when in storage - far higher than their lead-acid counterparts. The latest generation in maintenance-free batteries is here! Each battery is fitted with an internal battery management system to provide safe charging and discharging at all times. This system provides internal short circuit, over temperature and under/over voltage cut off. Can be wired in series and/or parallel. When used in series each battery will need to be discharged to cut off before connecting so that all cells are all balanced. **Suitable for recharging with the mains battery charger models listed in the accessories below.** **Factory supplied at 30% charge for safety compliance. Must be charged fully before use.** **Excessive temperatures over 65ºC can affect the ABS housing. Need to be well-ventilated in warm conditions. Not for use in engine bays.** #### Features - Internal battery management system for safe charging and discharging. - Drop in replacement for standard lead acid 7Ah or 9Ah batteries - Half the weight of traditional lead acid batteries. - Less discharge when in storage compared with traditional lead acid batteries. - Longer service life compared to lead acid. - Longer run time compared to lead acid. - Factory supplied at 30% charge for safety compliance. **What are LiFePO4 type batteries?** Check out our [handy article explaining the benefits of using LiFePO4 batteries.](https://www.altronics.com.au/articles/what-are-life-po4-lithium-batteries/) ## Information & Downloads - [Datasheet](https://core-electronics.com.au/attachments/localcontent/datasheets_SL4541ADoc1_12763cdf982.pdf) - [LiFePO4 Fact Sheet](https://core-electronics.com.au/attachments/localcontent/datasheets_SL4541ADoc2_30418dc890d.pdf) - [Guide To Recovering From Safe/Sleep Mode](https://core-electronics.com.au/attachments/localcontent/instructions_SL45XX_441278b690b.pdf) ## Specifications - **General** - Dimensions: 151 x 65 x 94mm - Overall Weight: 1.1kg - Terminal Type: F2 - Connection: 12-48V max 4 in series, no limit in parallel. - Note: When used in series each battery will need to be discharged to cut off before connecting so that all cells are all balanced. - Case Material: ABS - Case IP Rating: IP56 - Cell Type: Cylinder - Certification: CB/CE, UN38.3, UL1642 @ cell. - Shipping Class: UN3480, Class 9 - **Battery Module Specification** - Nominal Voltage: 12.8V @ 25° C,0.2C - Capacity: 8Ah @ 25 Deg C,0.2C - **Operating Parameters** - Charging Voltage: 14.8V - Discharging Voltage: 11.8V (8.4 - 15V range) - Charging Current: 8A max, Recommended 4A - Max Constant Discharge: 10A - Pulse Discharge: 28A for 30S - **Temperature** - Charge Range: 0 to 45°C - Discharge Range: -20 to 60°C - Storage Range: -20 to 45°C - **Service Life** - Design Life: >10 years @ 25°C, 0.2C - Cycle Life (25°C, 0.2C): >2000 times (100% DOD to 80% end) - Cycle Life (25°C, 0.5C): >4000 cycles (100% DOD to 50% end) - **BMS Parameters:** - **Charging** - Cell Voltage Protection: 3.7V Delay 1-2S (Recover when discharge current >1A or cell voltage <3.38V or module voltage <13.52V) - Module Voltage Protection: 14.8V Delay 1-2S (Recover when discharge current >1A or Cell voltage <3.38V or module voltage <13.52V) - Over Charging Current: 10A Delay 20-30S (Turn to pre-charge mode and try to recover in every 3 minutes) - Temperature Protection: <-10°C or >70°C, Delay 1-2S (Recovery when >0°C or <60°C) - **Discharging** - Cell Voltage Protection: 2.65V Delay 500mS (Recover when charge current >1A or cell voltage >2.3V or module voltage >9.2V) - Module Voltage Protection: 8.4V Delay 1-2S (Recover when charge current >1A or cell voltage >2.3V or module voltage >9.2V) - Over Discharging Current: 28-38A Delay 500-1500mS (Recover when charging current >1A, or recover in every 60S) - Short Circuit: 200-700us (Recover when charging current >1A, or recover in every 60S) - Temperature Protection: <-20°C or >75°C, Delay 1-2S (Recovery when >-10°C or <65°C) - **BMS Features** - PCB Temp Protection: >115°C Delay 1-2S Recover when <80°C - Cell Balance: 26-46mA passive balance cell voltage difference > 46mV - Temperature Accuracy: ±2°C Cycle measurement Measuring range -40 to 100°C - Voltage Accuracy: ±20mV Cycle measurement for cells and module - Current Accuracy: FSC±5% Cycle measurement measuring range -200 to +200 - SOC: 5% (integral calculation) - Power Consumption: <300uA (switch off mode - storage), <100uA (sleep mode - protection & standby), <15mA (operating mode) \*Specifications are subject to change without notice. ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/A/S/ASL4541A-1.jpg)