{"product_id":"max-rebar-rb215-replacement-battery-96v-1500mah-ni-mh","title":"Max Rebar JP409 9.6V Ni-MH Replacement Battery RB215 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMax Rebar RB215 Series — 9.6V Ni-MH Replacement Battery (JP409)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 9.6V, 1500mAh Ni-MH replacement battery for the Max Rebar RB215, RB315, RB392, and RB395 rebar tying tools. It replaces OEM part numbers JP409 and JP409GD. The cell chemistry, connector, and BMS handshake match the original pack specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRB215, RB315, RB392, RB395 compatibility:\u003c\/strong\u003e\n    These models share the same 9.6V battery platform, connector pinout, and BMS communication protocol. One pack works across all four units without modification or adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated tying sequences on an RB215 and monitored the BMS response to the motor inrush spike at trigger pull. The overcurrent threshold matched OEM behaviour — no nuisance trips under normal cyclic load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in procedure for rebar tiers:\u003c\/strong\u003e\n    On first use, run the tool at reduced trigger pressure for two full cycles before full-torque tying. This lets the BMS log the motor inrush profile and set overcurrent thresholds accurately before you hit maximum load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS overcurrent trip on motor-start inrush in rebar tiers\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRebar tying tools draw a sharp current spike the moment the motor engages — typically two to three times the steady-state draw. On a new or cold pack, the BMS has not yet profiled this inrush and may apply a conservative overcurrent threshold. That causes the pack to cut out on the first trigger pull even though nothing is mechanically wrong. Running two break-in cycles at partial load lets the BMS calibrate its threshold to actual motor behaviour before you put the tool under full tying load.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs stored for more than a few months can self-discharge below the charger's minimum acceptance voltage. When that happens, the charger sees an apparent open circuit and refuses to begin the charge cycle. The fix is a short conditioning pulse — some chargers have a recovery or \"force charge\" mode that applies a low current trickle until the pack climbs above the acceptance threshold, typically around 7.2V for a 9.6V Ni-MH. If your charger lacks that mode, a compatible Ni-MH conditioning charger with trickle-start will bring the pack back to a chargeable state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416068292698,"sku":"BWCS-MXR315PW-1","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416068325466,"sku":"BWCS-MXR315PW-2","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416068358234,"sku":"BWCS-MXR315PW-3","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MXR315PW-1.webp?v=1779760055","url":"https:\/\/batteryweb.com\/products\/max-rebar-rb215-replacement-battery-96v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}