12-11-2020, 11:44 PM | #1 |
Not Yet Wild
Join Date: Dec 2020
Posts: 2
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92' Limo resurrection
Hello all. I've been lurking the forums for awhile and jumped head first into a Nissan Leaf 48v battery upgrade/build and cart resurrection.
First, I aquired the cart from my buddy. It's a 1992 EZGO 36v 6 seater. It's been sitting for a few years. Apparently he purchased new batteries at that time, it ran for awhile then stopped working. He parked it and it sat until I got it home. I purchased 7 Gen 2 Nissan leaf cells from a local source and ordered the tech direct BMS "kit." Besides a new controller and solenoid anything else that I'll need? Any recommendations on which to purchase? Speed is not a goal. Just need enough umph to get around the neighborhood and to and from golf course (approx 5 miles round trip). Anything that may be an issue going to 48V? I've been reading alot and alot of the builds seem to be on newer carts. I appreciate all info. Thanks! I attached a pic of the cart for fun. [emoji106] Sent from my Pixel 4 XL using Tapatalk |
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12-12-2020, 09:55 AM | #2 |
Gone Wild
Join Date: Jul 2018
Location: Central Ohio
Posts: 1,720
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Re: 92' Limo resurrection
Fun build.
What are the specs on the Tech Direct BMS you got? There have been others that got BMSs from them and they were not up to the task, due to the specs. Maybe they have gone to a better BMS and you will be fine, but I would suggest listing the specs here so the gurus can chime in. |
12-12-2020, 12:36 PM | #3 | |
Not Yet Wild
Join Date: Dec 2020
Posts: 2
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Re: 92' Limo resurrection
Quote:
Here are the specs from the tech direct page: 48V BMS for Nissan Leaf Battery G1 G2 w Connection board and 15 pin wire connection version 2 63A Breaker.* DC Meter.* Metal Case* * Discharge Continuous*Discharging Current 60 A Instantaneous*Discharge Current 120 A Charge Charging Voltage 58.8 V Charging Current 45 A Overcharge Protect Over-charge Detect 4.28±0.05 V Protect Delay 100 mS Over-charge release 4.08±0.05 V Balance Detect Voltage 4.2±0.025 V Release Voltage 4.2±0.05 V Balance Current 60±5 mA Over-discharge Protect Over-discharge Detect 2.55±0.08 V Over-discharge Detect delay 50 mS Release Voltage 2.9±0.1 V Over-current Protect Detect Voltage 150 mV Detect Delay 15 mS Current Detect 130±10 A Release Condition Cut Load Short-circuit Protect Protect Condition Cut Load Detect Delay 200 uS Release Condition Cut Load Temperature Protect Temperature Protect /* Resistance Inner ≤15 mΩ Self-Consumption Working Current ≤60 uA Sleep Current (when Over-discharge) ≤10 uA Working Temperature Range -30/+80* Thanks again. I look forward to sharing my progress and learning as I go. [emoji106] Sent from my Pixel 4 XL using Tapatalk |
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