{"id":2900,"date":"2025-03-14T12:00:20","date_gmt":"2025-03-14T04:00:20","guid":{"rendered":"https:\/\/nuranu.com\/?p=2900"},"modified":"2025-03-14T12:05:26","modified_gmt":"2025-03-14T04:05:26","slug":"how-to-charge-18650-battery-without-charger","status":"publish","type":"post","link":"https:\/\/nuranu.com\/ja\/how-to-charge-18650-battery-without-charger\/","title":{"rendered":"18650\u96fb\u6c60\u3092\u5145\u96fb\u5668\u306a\u3057\u3067\u5145\u96fb\u3059\u308b\u65b9\u6cd5\uff1a3\u3064\u306e\u7dca\u6025\u96fb\u6e90\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3"},"content":{"rendered":"

\u6b7b\u3093\u306018650\u30d0\u30c3\u30c6\u30ea\u30fc\u3068\u5145\u96fb\u5668\u304c\u306a\u3044\u72b6\u614b\u3067\u884c\u304d\u8a70\u307e\u3063\u3066\u3044\u307e\u3059\u304b\uff1f<\/strong> \u30aa\u30d5\u30b0\u30ea\u30c3\u30c9\u306e\u5192\u967a\u306b\u5099\u3048\u308b\u5834\u5408\u3067\u3082\u3001\u53e4\u3044\u6a5f\u5668\u304b\u3089\u30bb\u30eb\u3092\u30ea\u30b5\u30a4\u30af\u30eb\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u5c02\u7528\u6a5f\u5668\u306a\u3057\u3067\u30ea\u30c1\u30a6\u30e0\u30a4\u30aa\u30f3\u96fb\u6c60\u3092\u5b89\u5168\u306b\u5145\u96fb\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u308b\u3053\u3068\u306f\u91cd\u8981\u306a\u751f\u5b58\u30b9\u30ad\u30eb\u3067\u3059\u3002\u672c\u30ac\u30a4\u30c92025\u5e74\u7248\u3067\u306f\u3001\u5c02\u9580\u5bb6\u3068\u3057\u3066 18650\u96fb\u6c60\u30d1\u30c3\u30af\u306e\u30e1\u30fc\u30ab\u30fc<\/a>, \u79c1\u306f3\u3064\u306e\u7dca\u6025\u5145\u96fb\u6cd5\u3001\u5fc5\u9808\u306e\u5b89\u5168\u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u8cc7\u6e90\u304c\u9650\u3089\u308c\u305f\u72b6\u6cc1\u3067\u3082\u96fb\u6c60\u5bff\u547d\u3092\u6700\u5927\u5316\u3059\u308b\u30d7\u30ed\u306e\u30b3\u30c4\u3092\u5171\u6709\u3057\u307e\u3059\u3002.<\/p>\n

\"\u5145\u96fb\u5668\u306a\u3057\u306718650\u96fb\u6c60\u3092\u5145\u96fb\u3059\u308b\u65b9\u6cd5\"<\/p>\n\n

18650\u96fb\u6c60\u3092\u30e6\u30cb\u30fc\u30af\u306b\u3059\u308b\u3082\u306e\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n

18650\uff08\u76f4\u5f8418mm\u00d7\u9577\u305565mm\uff09\u306f\u5145\u96fb\u5f0f\u30ea\u30c1\u30a6\u30e0\u30a4\u30aa\u30f3\u96fb\u6c60\u306e\u4e3b\u529b\u3067\u3001\u9ad8\u7d1a\u61d0\u4e2d\u96fb\u706f\u304b\u3089\u96fb\u6c17\u81ea\u52d5\u8eca\u307e\u3067\u5e45\u5e83\u304f\u52d5\u4f5c\u3055\u305b\u307e\u3059\u3002\u4e00\u822c\u7684\u306aAA\u96fb\u6c60\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u308c\u3089\u306e\u30bb\u30eb\u306b\u306f\u4ee5\u4e0b\u304c\u8a70\u307e\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n

\u2013 \u516c\u79f0\u96fb\u57273.7V<\/strong> (\u5b8c\u5168\u5145\u96fb\u6642\u306e\u96fb\u5727\u306f4.2V)
\n\u2013 1500-3500mAh \u5bb9\u91cf\u00a0<\/strong>
\n\u2013 15-30A \u653e\u96fb\u30ec\u30fc\u30c8<\/strong>
\n\u2013 200-500 \u56de\u306e\u5145\u96fb\u30b5\u30a4\u30af\u30eb<\/strong><\/p>\n

DIY \u5145\u96fb\u306e\u91cd\u8981\u306a\u4ed5\u69d8:<\/p>\n\n\n\n\n\n\n\n
\u30d1\u30e9\u30e1\u30fc\u30bf<\/strong><\/span><\/th>\n\u6700\u5c0f<\/strong><\/span><\/th>\n\u6700\u5927<\/strong><\/span><\/th>\n\u5371\u967a\u9818\u57df<\/strong><\/span><\/th>\n<\/tr>\n<\/thead>\n
\u96fb\u5727<\/span><\/td>\n2.5V<\/span><\/td>\n4.2V<\/span><\/td>\n4.3V<\/span><\/td>\n<\/tr>\n
\u5145\u96fb\u96fb\u6d41<\/span><\/td>\n0.5A<\/span><\/td>\n2A<\/span><\/td>\n>3A<\/span><\/td>\n<\/tr>\n
\u6e29\u5ea6<\/span><\/td>\n10\u00b0C<\/span><\/td>\n45\u00b0C<\/span><\/td>\n>60\u00b0C<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5145\u96fb\u5668\u306a\u3057\u306718650\u96fb\u6c60\u3092\u5145\u96fb\u3059\u308b\u65b9\u6cd5: 3\u3064\u306e\u65b9\u6cd5<\/h2>\n

1. USB\u30b1\u30fc\u30d6\u30eb\u30cf\u30c3\u30af\uff08\u90e8\u5206\u5145\u96fb\u306b\u6700\u9069\uff09<\/h3>\n

\u30c4\u30fc\u30eb\u5fc5\u8981: USB\u96fb\u6e90 (5V\/1A)\u3001\u30c0\u30a4\u30aa\u30fc\u30c92\u500b (1N4007)\u3001\u30a2\u30ea\u30b2\u30fc\u30bf\u30af\u30ea\u30c3\u30d7<\/em><\/p>\n

1. \u96fb\u5727\u30ea\u30df\u30c3\u30bf\u30fc\u3092\u7d44\u3080:<\/strong> \u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u76f4\u5217\u63a5\u7d9a\u3057\u3066USB 5V\u3092\u964d\u5727 \u2192 \u7d044.2V
\n\u2013 \u5404\u30c0\u30a4\u30aa\u30fc\u30c9\u306f\u96fb\u5727\u30920.6-0.7V\u4f4e\u4e0b\u3055\u305b\u308b
\n\u2013 \u30c0\u30a4\u30aa\u30fc\u30c92\u500b\u4f7f\u7528: 5V \u2013 (0.7\u00d72) = 3.6V\uff08\u5b89\u5168\u306a\u5fae\u5c0f\u5145\u96fb\uff09<\/p>\n

2. \u914d\u7dda\u63a5\u7d9a:<\/strong><\/p>\n

USB \uff0b \u2192 \u30c0\u30a4\u30aa\u30fc\u30c9\u9023\u9396 \u2192 \u30d0\u30c3\u30c6\u30ea \uff0b
\nUSB \uff0d \u2192 \u30d0\u30c3\u30c6\u30ea \uff0d<\/p>\n

3. \u5e38\u306b\u76e3\u8996:<\/strong>
\n\u2013 \u96fb\u5727\u30925\u5206\u3054\u3068\u306b\u30de\u30eb\u30c1\u30e1\u30fc\u30bf\u3067\u78ba\u8a8d
\n\u2013 3.7V\u3067\u5207\u65ad\uff0870%\u5bb9\u91cf\uff09<\/p>\n

\u30d7\u30ed\u306e\u30b3\u30c4:<\/em> \u30c0\u30a4\u30aa\u30fc\u30c9\u3068\u30d0\u30c3\u30c6\u30ea\u306e\u9593\u306b100\u03a9\u62b5\u6297\u3092\u8ffd\u52a0\u3057\u3066\u96fb\u6d41\u3092\u5236\u9650\u3059\u308b\u3002.<\/p>\n

2. \u30bb\u30ab\u30f3\u30c9\u30d0\u30c3\u30c6\u30ea\u5fa9\u6d3b\u6cd5\uff08\u6df1\u653e\u96fb\u30bb\u30eb\uff1c2.5V\u5411\u3051\uff09<\/h3>\n

\u5fc5\u8981\u5de5\u5177: \u5065\u5eb7\u306a18650\u96fb\u6c60\uff08\u22653.7V\uff09\u3001\u9285\u7dda\u3001\u78c1\u6c17\u63a5\u70b9<\/em><\/p>\n

1. \u4e26\u5217\u63a5\u7d9a\u8a2d\u5b9a:<\/strong><\/p>\n

\u30c9\u30ca\u30fc \uff0b \u2192 Dead Battery \uff0b
\n\u30c9\u30ca\u30fc \uff0d \u2192 Dead Battery \uff0d<\/p>\n

2. \u77ed\u6642\u9593\u3067\u5145\u96fb:<\/strong>
\n\u2013 2\u5206 \u2192 \u96fb\u5727\u3092\u30c1\u30a7\u30c3\u30af
\n\u2013 \u505c\u6b62\u3059\u308b\u307e\u3067\u7e70\u308a\u8fd4\u3059\uff08\u6b7b\u3093\u3060\u30bb\u30eb\u304c2.8V\u306b\u9054\u3059\u308b\u307e\u3067\uff09<\/p>\n

3. \u9069\u5207\u306a\u5145\u96fb\u5668\u3067\u7d42\u4e86<\/strong><\/p>\n

\u91cd\u5927\u306a\u5b89\u5168\u4e0a\u306e\u6ce8\u610f\uff1a<\/em> \u653e\u7f6e\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u71b1\u753b\u50cf\u30ab\u30e1\u30e9\u307e\u305f\u306f\u8d64\u5916\u7dda\u6e29\u5ea6\u8a08\u3092\u4f7f\u3063\u3066\u904e\u71b1\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

3. \u30d6 Bench \u30d1\u30ef\u30fc\u30b5\u30d7\u30e9\u30a4\uff08\u4e0a\u7d1a\u8005\u5411\u3051\u306e\u307f\uff09<\/h3>\n

\u8981\u4ef6: \u8abf\u6574\u53ef\u80fd\u306aDC\u4f9b\u7d66\uff080-6V\uff09\u3001\u96fb\u6d41\u30ea\u30df\u30c3\u30bf\u30fc<\/em><\/p>\n

1. \u30d1\u30e9\u30e1\u30fc\u30bf\u8a2d\u5b9a\uff1a<\/strong>
\n\u2013 \u96fb\u5727: 4.1V\uff084.2V\u3088\u308a\u5b89\u5168\uff09
\n\u2013 \u96fb\u6d41: 0.5C\uff08\u4f8b\uff1a2000mAh\u30bb\u30eb\u306e\u5834\u54081A\uff09<\/p>\n

2. CC\/CV\u5145\u96fb\uff1a<\/strong>
\n\u2013 4.1V\u307e\u3067\u5b9a\u5e38\u96fb\u6d41
\n\u2013 \u96fb\u6d41\u304c0.1A\u307e\u3067\u4e0b\u304c\u308b\u307e\u3067\u5b9a\u5e38\u96fb\u5727<\/p>\n

3. \u81ea\u52d5\u906e\u65ad\uff1a<\/strong>
\n\u6545\u969c\u5bfe\u7b56 terminated \u3092\u884c\u3046\u305f\u3081\u306b\u96fb\u5727\u30bb\u30f3\u30b5\u30fc\u4ed8\u304d\u306eArduino\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002.<\/p>\n

\u5b89\u5168\u7b2c\u4e00\uff1a\u30ea\u30c1\u30a6\u30e0\u96fb\u6c60\u53d6\u308a\u6271\u3044\u30d7\u30ed\u30c8\u30b3\u30eb<\/h2>\n

1. \u4fdd\u7ba1\u898f\u5247<\/strong>
\n\u2013 \u5468\u56f2\u6e29\u5ea6\u309240\u00b0C\u4ee5\u4e0b\u306b\u4fdd\u3064
\n\u2013 \u9577\u671f\u4fdd\u7ba1\u306e\u305f\u3081\u306b3.6-3.8V\u3092\u7dad\u6301
\n\u8010\u706b\u6027\u5bb9\u5668\u3092\u4f7f\u7528<\/p>\n

2. \u5371\u967a\u30b5\u30a4\u30f3<\/strong>
\n\u21e7 \u816b\u308c \u21e8 \u76f4\u3061\u306b\u51e6\u5206<\/strong>
\n\u21e7 \u71b1\u91cf \u21e8 \u5869\u6c34\u306b\u6d78\u3059<\/strong>
\n\u21e9 \u96fb\u5727 <2V \u21e8 \u30ea\u30b5\u30a4\u30af\u30eb\u3001\u8607\u751f\u4e0d\u53ef<\/strong><\/p>\n

3. \u5fc5\u9808\u30c4\u30fc\u30eb<\/strong>
\n\u2013 \u8010\u706b\u624b\u888b\uff08$12\uff09
\n\u2013 LiPo\u5b89\u5168\u30d0\u30c3\u30b0\uff08$8\uff09
\n\u2013 \u30c7\u30b8\u30bf\u30eb\u30de\u30eb\u30c1\u30e1\u30fc\u30bf\uff08$25\uff09<\/p>\n

\u30d0\u30c3\u30c6\u30ea\u5bff\u547d\u5411\u4e0a\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n

1. \u5145\u96fb\u30b5\u30a4\u30af\u30eb<\/strong>
\n\u2013 \u5b8c\u5168\u653e\u96fb\u3092\u907f\u3051\u308b \u21e8 20%\u4ee5\u4e0a\u3092\u7dad\u6301
\n\u2013 \u90e8\u5206\u5145\u96fb\uff0840-80%\uff09\u3067\u5bff\u547d\u3092\u5ef6\u3070\u3059<\/p>\n

2. \u8a3a\u65ad\u30c1\u30a7\u30c3\u30af\u00a0<\/strong><\/p>\n

\u67081: \u5bb9\u91cf\u30c6\u30b9\u30c8
\n\u67083: \u5185\u90e8\u62b5\u6297\u30c1\u30a7\u30c3\u30af
\n6\u304b\u6708\u76ee: 2C\u653e\u96fb\u306b\u3088\u308b\u8ca0\u8377\u8a66\u9a13<\/p>\n

3. \u4fdd\u7ba1\u6e96\u5099<\/strong>
\n\u63a5\u70b9\u3092\u30a4\u30bd\u30d7\u30ed\u30d4\u30eb\u30a2\u30eb\u30b3\u30fc\u30eb\u3067\u6e05\u6d44\u3059\u308b
\n\u2013 \u7d76\u7e01\u30c6\u30fc\u30d7\u3067\u7aef\u5b50\u3092\u8986\u3046
\n\u2013 \u6c17\u5019\u7ba1\u7406\u3055\u308c\u305f\u74b0\u5883\u3067\u4fdd\u7ba1<\/p>\n

FAQ: \u7dca\u602518650\u5145\u96fb<\/h2>\n

Q: 18650\u3092\u5145\u96fb\u3059\u308b\u305f\u3081\u306bAA\u96fb\u6c60\u3092\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/strong>
\n\u3044\u3044\u3048\u2014AA\u306f1.5V\u3057\u304b\u63d0\u4f9b\u3057\u307e\u305b\u3093\u3002\u76f4\u52173\u500b\u5fc5\u8981\uff084.5V\uff09\u3067\u3059\u304c\u3001\u96fb\u6d41\u51fa\u529b\u304c\u4e0d\u8db3\u3057\u3066\u3044\u307e\u3059\u3002.<\/em><\/p>\n

Q: \u507d\u7269\u306e18650\u3092\u898b\u5206\u3051\u308b\u65b9\u6cd5\u306f\uff1f<\/strong>
\n\u2013 \u91cd\u91cf\u304c<45g\uff1f \u304a\u305d\u3089\u304f\u507d\u7269
\n\u2013 \u30ec\u30fc\u30b6\u30fc\u523b\u5370\u3055\u308c\u305f\u30b7\u30ea\u30a2\u30eb\u306a\u3057
\n\u2013 \u300cUltraFire\u300d\u30d6\u30e9\u30f3\u30c9\u306f\u3057\u3070\u3057\u3070\u904e\u5927\u8a55\u4fa1\u3055\u308c\u308b<\/p>\n

Q: \u5b89\u5168\u306a\u51e6\u5206\u65b9\u6cd5\u306f\uff1f<\/strong>
\n\u2013 \u98df\u5869\u6c34\u3067\u5b8c\u5168\u653e\u96fb\uff0812\u6642\u9593\uff09
\n\u2013 \u96fb\u5b50\u5ec3\u68c4\u7269\u30bb\u30f3\u30bf\u30fc\u3078\u6301\u3061\u8fbc\u3080\u2014\u6c7a\u3057\u3066\u30b4\u30df\u3068\u3057\u3066\u6368\u3066\u306a\u3044\uff01<\/p>\n

\u5145\u96fb\u5668\u306a\u3057\u306718650\u96fb\u6c60\u3092\u5145\u96fb\u3059\u308b\u65b9\u6cd5: \u6700\u7d42\u63a8\u5968<\/h2>\n

\u3053\u308c\u3089\u306e\u65b9\u6cd5\u306f\u7dca\u6025\u6642\u306b\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u9069\u5207\u306a\u6a5f\u5668\u306e\u4ee3\u66ff\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u30b9\u30de\u30fc\u30c8\u5145\u96fb\u5668\uff08XTAR VC4S \u307e\u305f\u306f Nitecore D4\uff09\u3078\u306e\u6295\u8cc7\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n

\u2013 \u81ea\u52d5\u96fb\u5727\u691c\u51fa
\n\u2013 \u518d\u751f\u5faa\u74b0
\n\u2013 \u5bb9\u91cf\u30b0\u30ec\u30fc\u30c7\u30a3\u30f3\u30b0<\/p>\n

\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\uff1aDIY\u5145\u96fb\u306f\u30d0\u30c3\u30c6\u30ea\u30fc\u5bff\u547d\u3092\u7e2e\u3081\u307e\u3059\u3002\u30b5\u30a4\u30af\u30eb\u3092\u8ffd\u8de1\u3057\u3001\u4ee5\u4e0b\u3092\u793a\u3059\u30bb\u30eb\u3092\u4ea4\u63db\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n

\u2013 \u21e7 20%\u5185\u90e8\u62b5\u6297
\n\u2013 \u21e9 15%\u5bb9\u91cf
\n\u2013 \u7269\u7406\u7684\u5909\u5f62<\/p>\n

\u9577\u671f\u306e\u30aa\u30d5\u30b0\u30ea\u30c3\u30c9\u4f7f\u7528\u3092\u7d99\u7d9a\u3059\u308b\u306b\u306f\u3001MPPT\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3068\u30d0\u30c3\u30c6\u30ea\u30fc\u30af\u30ec\u30fc\u30c9\u30eb\u3092\u5099\u3048\u305f\u592a\u967d\u5149\u5145\u96fb\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u69cb\u7bc9\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b89\u5168\u306b\u96fb\u529b\u3092\u78ba\u4fdd\u3057\u307e\u3057\u3087\u3046\uff01<\/p>","protected":false},"excerpt":{"rendered":"

\u5145\u96fb\u5668\u304c\u306a\u304f\u3066\u3082\u6b7b\u3093\u306018650\u96fb\u6c60\u3092\u5b89\u5168\u306b\u5145\u96fb\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u307e\u3059\u304b\uff1f\u30aa\u30d5\u30b0\u30ea\u30c3\u30c9\u306a\u5192\u967a\u3092\u6e96\u5099\u3057\u3066\u3044\u308b\u5834\u5408\u3084\u3001\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u30bb\u30eb\u3092\u6551\u6e08\u3057\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001\u5c02\u7528\u6a5f\u5668\u306a\u3057\u3067\u30ea\u30c1\u30a6\u30e0\u30a4\u30aa\u30f3\u96fb\u6c60\u3092\u5b89\u5168\u306b\u5145\u96fb\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u304a\u304f\u3053\u3068\u306f\u91cd\u8981\u306a\u751f\u5b58\u30b9\u30ad\u30eb\u3067\u3059\u30022025\u5e74\u306e\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5c02\u9580\u306e18650\u96fb\u6c60\u30d1\u30c3\u30af\u30e1\u30fc\u30ab\u30fc\u3068\u3057\u3066\u30013\u3064\u306e\u975e\u5e38\u6642\u5145\u96fb\u65b9\u6cd5\u3001\u5fc5\u9808\u306e\u5b89\u5168\u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u8cc7\u6e90\u304c\u9650\u3089\u308c\u305f\u72b6\u6cc1\u3067\u3082\u96fb\u6c60\u5bff\u547d\u3092\u6700\u5927\u5316\u3059\u308b\u30d7\u30ed\u306e\u30b3\u30c4\u3092\u5171\u6709\u3057\u307e\u3059\u300218650\u96fb\u6c60\u306e\u7279\u5fb4\u306f\u4f55\u304b\uff1f18650\uff08\u76f4\u5f8418mm\u00d7\u9577\u305565mm\uff09\u306f\u5145\u96fb\u5f0f\u30ea\u30c1\u30a6\u30e0\u30a4\u30aa\u30f3\u30bb\u30eb\u306e\u50cd\u304d\u624b\u3067\u3001\u9ad8\u7d1a\u61d0\u4e2d\u96fb\u706f\u304b\u3089\u96fb\u6c17\u81ea\u52d5\u8eca\u307e\u3067\u5e45\u5e83\u304f\u96fb\u529b\u3092\u4f9b\u7d66\u3057\u307e\u3059\u3002\u6a19\u6e96\u306eAA\u96fb\u6c60\u3068\u306f\u7570\u306a\u308a\u3001\u3053\u308c\u3089\u306f\u6b21\u306e\u7279\u9577\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u2013 \u540d\u76ee3.7V\u96fb\u5727\uff08\u5b8c\u5168\u5145\u96fb\u66424.2V\uff09\u2013 1500-3500mAh [\u2026]<\/p>","protected":false},"author":1,"featured_media":2901,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-2900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-knowledge"],"yoast_head":"\nHow to Charge 18650 Battery Without Charger: 3 Emergency Power Solutions - Nuranu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nuranu.com\/ja\/how-to-charge-18650-battery-without-charger\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Charge 18650 Battery Without Charger: 3 Emergency Power Solutions\" \/>\n<meta property=\"og:description\" content=\"Stranded with a dead 18650 battery and no charger? Whether you’re prepping for off-grid adventures or salvaging cells from old devices, knowing how to safely charge lithium-ion batteries without dedicated equipment is a critical survival skill. In this 2025 guide, as a professional 18650 battery pack manufacturer, I will share three emergency charging methods, essential safety protocols, and pro tips to maximize battery lifespan\u2014even in resource-limited scenarios. What Makes 18650 Batteries Unique? The 18650 (18mm diameter x 65mm length) is the workhorse of rechargeable lithium-ion cells, powering everything from high-end flashlights to electric vehicles. 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Whether you’re prepping for off-grid adventures or salvaging cells from old devices, knowing how to safely charge lithium-ion batteries without dedicated equipment is a critical survival skill. In this 2025 guide, as a professional 18650 battery pack manufacturer, I will share three emergency charging methods, essential safety protocols, and pro tips to maximize battery lifespan\u2014even in resource-limited scenarios. What Makes 18650 Batteries Unique? The 18650 (18mm diameter x 65mm length) is the workhorse of rechargeable lithium-ion cells, powering everything from high-end flashlights to electric vehicles. 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