{"product_id":"heltec-energy-4s-5a-active-balancer-with-voltage-display-for-lfp-ncm-battery-packs","title":"Heltec Energy 4S 5A Active Balancer with Voltage Display for LFP\/NCM Battery Packs","description":"\u003cp\u003eThe Heltec Energy DS0855 is a 4S active battery balancer with built-in voltage display for LFP and NCM battery packs.\u003c\/p\u003e\n\u003cp\u003eThis unit is designed for 4-series battery builds where cell balancing and real-time cell voltage visibility are useful during setup, testing, and maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003cbr\u003e- 4S active balancing\u003cbr\u003e- Built-in voltage display\u003cbr\u003e- Supports LFP and NCM battery types\u003cbr\u003e- Maximum balancing current up to 5A\u003cbr\u003e- Balance voltage accuracy approximately 5mV\u003cbr\u003e- Minimum balancing start voltage difference approximately 0.01V\u003cbr\u003e- Displays total pack voltage and individual cell-string voltage\u003cbr\u003e- No external power supply required\u003cbr\u003e- Manual sleep\/always-on button\u003cbr\u003e- RoHS documentation available\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003cbr\u003eThis is an active balancer, not a BMS. It does not replace proper battery protection. A suitable BMS, fuse, wiring, and charger should still be used for a complete battery system.\u003c\/p\u003e\n\u003cp\u003eSodium-ion note:\u003cbr\u003eThis standard version is not intended for sodium-ion systems operated down to very low cell voltage. The balancer sleep threshold is approximately 2.7V for NCM\/LFP use. For sodium-ion cells operated below that range, a lower-voltage LTO-range version may be required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003cbr\u003e- 1x 4S active balancer with display\u003cbr\u003e- 1x wiring harness\u003cbr\u003e- Basic Saltra support notes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpec:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eModel: DS0855\u003cbr\u003eSeries count: 4S\u003cbr\u003eBattery type: LFP \/ NCM\u003cbr\u003eDisplay: Yes\u003cbr\u003eMax balancing current: up to 5A\u003cbr\u003eBalance voltage accuracy: approx. 5mV\u003cbr\u003eOperating voltage range: 2.7V–4.2V for NCM\/LFP\u003cbr\u003eSleep voltage: approx. 2.7V\u003cbr\u003eStatic operating current: approx. 13mA\u003cbr\u003eOperating temperature: -10°C to 60°C\u003cbr\u003eExternal power: Not required\u003cbr\u003eDocumentation: User manual and RoHS documentation available\u003c\/p\u003e","brand":"Saltra Batteries LLC","offers":[{"title":"Default Title","offer_id":53713197564211,"sku":"SAL-BAL-4S-5A-DISP-DS0855","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/5892\/8691\/files\/4SBalancer.jpg?v=1785014486","url":"https:\/\/saltrabatteries.com\/products\/heltec-energy-4s-5a-active-balancer-with-voltage-display-for-lfp-ncm-battery-packs","provider":"Saltra Batteries LLC","version":"1.0","type":"link"}