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Under $20 Battery Charge Controllers

Shop the best prices on 10,713 great value under $20 battery charge controllers. Shopping for battery charge controllers is easy with Fruugo, with SALE discounts, offers and savings on Aura, Jtgg, Other and more. Buy battery charge controllers online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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1 - 32 of 10,713
6V 12V 10A Auto Solar Panel Charge Controller Battery Charger Regulator (Black)
$15.95 Save $68.05 RRP: $84.00
Solar String Light Control Box Automatic Waterproof Adjustable Luminance Solar Lamp String Circuit Board Output Boost 24V
$7.95 Save $40.00 RRP: $47.95
For 18V BL1850B/BL1840B Lithium Battery Charging Protection Board Circuit Board Battery Indicator f
$11.95 Save $1.00 RRP: $12.95
USB Power Bank Virtual Load Anti-Shutdown Module,USB Electronic Load Mobile Power Anti-Shutdown Mod
$10.95 Save $5.00 RRP: $15.95
10Pcs 5V 1A 18650 Lithium Battery Charging Board Lithium Battery Charging Board Micro-USB Charge Mod
$10.95 Save $3.00 RRP: $13.95
10A 20A 30A 12V 24V MPPT Solar Charge Controller 50VDC PV Regulator Colorful Screen For Lithium Lifepo4 GEL Lead Acid
$14.95 Save $15.00 RRP: $29.95
67.2v 2a Lithium Battery Charger For Electric Bike 16s 60v Lithium Ion Battery Pack Unicycle Charge Joyy
$13.95 Save $4.00 RRP: $17.95
Solar Controller 12V/24V 30A 20A 10A Solar Regulator PWM Battery Charger LCD Display Dual USB 5V Out
$15.95 Save $10.00 RRP: $25.95
7-70V 30A PWM DC Motor Speed Controller Switch Control 12V 24V 36V 48V with 30 Amp Fuse-Good
$17.95 Save $15.00 RRP: $32.95
For 18V BL1850B/BL1840B Lithium Battery Charging Protection Board Circuit Board Battery Indicator f
$20.95 Save $21.00 RRP: $41.95
BMS 4S 30A 3.2V 3.7V 12.8V 14.4V Lithium Battery Protection Board Compatible with 18650 32650 Batteries Voltage Regulator for Computers
$20.95 Save $14.00 RRP: $34.95
BMS 10S 36V 15A 18650 - Lithium Battery Charge Protection Board PCB PCM Common Port for Escooter E-
$18.95
3S 20A PCB BMS Li-ion Battery Protection Board 18650 12.6V Lipo Cell Module 2025
$4.95 Save $4.00 RRP: $8.95
4S 12V 800A LiFePO4 Lithium Battery Charger BMS Protection Board with Power Battery Balance/Enhance
$20.95
7s 24v 25a Ternary Bms Lithium Battery Protection Board Same Port With Equalization For 18650 Solar
$17.95 Save $61.05 RRP: $79.00
Low Voltage Cutoff, Dc 6v-60v Low Voltage Protector Disconnect Switch Discharge Protector For Lead Acid Lithium Battery Edition 1128
$15.95 Save $34.00 RRP: $49.95
50A 12V 24V 36V High Voltage perfect Diode Controller Solar Battery Charging Anti-Backflow Protectiored A-C Edition 1210
$18.95 Save $40.05 RRP: $59.00
2025 High Efficiency Rechargeable Battery Charger ML2032 ML2016 ML2020 ML1220 Button Battery Charger
$16.95 Save $17.00 RRP: $33.95
5V USB Fan Speed Controller Voltage Regulation Module Motor Speed Controller USBA Interface DIY He
$10.95 Save $5.00 RRP: $15.95
1.2V Solar Lamp String Control Board Circuit Board with Switch Solar Street Light Control Panel Con
$7.95 Save $4.00 RRP: $11.95
4S 12V 120A Protection Board 3.2V BMS Li-Iron Battery Charger Protection Board with Power Battery Balance/Enhance Board
$22.95 Save $11.00 RRP: $33.95
USB Power Bank Virtual Load Anti-Shutdown Module,USB Electronic Load Mobile Power Anti-Shutdown Module
$9.95 Save $6.00 RRP: $15.95
Mobile Phone Battery Repairer Overcharge Overpower over Discharge Protection Battery Voltage and Current Detector White
$16.95
E-Bike LCD Display S800 - 36V/48V Waterproof Control Panel with 5-Pin Connector
$21.95 Save $97.05 RRP: $119.00
USB Power Bank Virtual Load Anti-Shutdown Module
$12.95
For V8 Slim/V10 Slim Drum Suction Blue Hose Part for V12 Slim/V15 Slim/SV18/SV20/SV10K Vacuum Clean
$12.95 Save $2.00 RRP: $14.95
9V/18V Solar Panel MPPT Controller 3.7V 7.4V Lithium Battery Charger Module18V
$21.95 Save $22.00 RRP: $43.95
Solar Lamp Controller Module Circuit Board Microwave Radar Induction with Switch 3.2V/3.7V
$18.95 Save $19.00 RRP: $37.95
1A 4.2V 3.7V 18650 LiPo Li ion Lithium Battery Charger MPPT Solar Charge Controller Module(with Pin )
$13.95 Save $13.00 RRP: $26.95
20A Solar Battery Controller Lithium Photovoltaic Charge Controller with Simple Protective Function for Efficient Energy Management
$17.95
BMS 7S 24V Lithium Battery Protection Board 18650 Balancer BMS Power Bank Charging for Motorcycle S
$17.95
BMS 10S 36V 15A 18650 Li-Ion Lithium Battery Charge Protection Board PCB PCM Common Port for Escoot
$17.95