{"product_id":"lithium-battery-capacity-indicator-1s-7s-18650-lipo-charging-tester","title":"Lithium Battery Capacity Indicator – 1S–7S 18650 LiPo Li-ion Capacity Board \u0026 Charging Tester (3.7V–29.4V)","description":"\u003ch2\u003eKnow Your Battery Level. Every Cell Configuration. 1S Through 7S.\u003c\/h2\u003e\u003cp\u003eThis lithium battery capacity indicator board gives you real-time battery level readout for 18650, LiPo, and Li-ion packs from 1S (3.7V) through 7S (29.4V). Essential for DIY battery builds, RC projects, and any application where knowing your remaining capacity matters.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1S–7S Coverage\u003c\/strong\u003e — Supports battery packs from 3.7V (1S) to 29.4V (7S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-Time Capacity Display\u003c\/strong\u003e — LED or display readout shows remaining battery level at a glance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18650 \/ LiPo \/ Li-ion Compatible\u003c\/strong\u003e — Works with all common lithium cell types\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Board Design\u003c\/strong\u003e — Easy to integrate into custom battery packs and enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7 Configuration Options\u003c\/strong\u003e — Select the exact cell count for your battery pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're building a custom e-bike battery, an RC pack, or a DIY power wall, this capacity indicator board gives you the real-time level readout you need to manage your battery safely and effectively.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What cell configurations are supported?\u003c\/strong\u003e\u003cbr\u003eA: Available in 1S (4.2V), 2S (8.4V), 3S (12.6V), 4S (16.8V), 5S (21V), 6S (25.2V), and 7S (29.4V).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What battery types does it work with?\u003c\/strong\u003e\u003cbr\u003eA: Compatible with 18650, LiPo, and Li-ion battery packs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How does it display the battery level?\u003c\/strong\u003e\u003cbr\u003eA: LED indicator display shows remaining capacity level in real time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it easy to install?\u003c\/strong\u003e\u003cbr\u003eA: Yes — compact board design integrates easily into custom battery packs and enclosures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is it suitable for e-bike batteries?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the 6S and 7S options are commonly used in e-bike battery management applications.\u003c\/p\u003e\u003ch3\u003eSPECIFICATIONS\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfigurations: 1S–7S (3.7V–29.4V)\u003c\/li\u003e\n\u003cli\u003eCompatible: 18650, LiPo, Li-ion\u003c\/li\u003e\n\u003cli\u003eDisplay: LED Capacity Indicator\u003c\/li\u003e\n\u003cli\u003eWeight: 0.02 lbs \/ 0.01 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Authority Asset Brand","offers":[{"title":"6S Lithium 25.2V","offer_id":49119384961268,"sku":"14:201659813#6S Lithium 25.2V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"5S Lithium 21V","offer_id":49119384994036,"sku":"14:4044226#5S Lithium 21V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"4S Lithium 16.8V","offer_id":49119385026804,"sku":"14:351074#4S Lithium 16.8V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"3S Lithium 12.6V","offer_id":49119385059572,"sku":"14:350852#3S Lithium 12.6V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"1S Lithium 4.2V","offer_id":49119385092340,"sku":"14:29#1S Lithium 4.2V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"7S Lithium 29.4V","offer_id":49119385125108,"sku":"14:10#7S Lithium 29.4V","price":16.99,"currency_code":"USD","in_stock":true},{"title":"2S Lithium 8.4V","offer_id":49119385157876,"sku":"14:1202#2S Lithium 8.4V","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0564\/6836\/files\/S869cd2c067ff42a7b4736c7b25825fc46.webp?v=1786489173","url":"https:\/\/authorityassetbrand.com\/products\/lithium-battery-capacity-indicator-1s-7s-18650-lipo-charging-tester","provider":"Authority Asset Brand","version":"1.0","type":"link"}